Page 1 Change for life AIRY INVERTER SERIES_R32 Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
Page 2 7. Function and Control ............110 7.1 Remote Controller Introduction for YBE1FB9 and YBE1FB12 ......110 7.2 Brief Description of Models and Functions ............125 7.3 GREE+ App Operation Manual ................151 7.4 Ewpe Smart App Operation Manual ..............152 8. Installation ................153 8.1 Installation Dimension Diagram ...............153 8.2 Installation Parts-checking ................158...
Page 3 Serv i ce M a nu a l 8.7 Vacuum Pumping and Leak Detection .............177 8.8 Check after Installation and Test Operation .............179 9. Maintenance ................181 9.1 Error Code List ....................181 9.2 Procedure of Troubleshooting ................190 9.3 Checkup ......................239 9.4 Troubleshooting for Normal Malfunction ............243 10.
Page 4 Serv i ce M a nu a l 1. Notes for Installation and Maintenance Safety Precautions: Important! Please read the safety precautions carefully before installation and maintenance. The following contents are very important for installation and maintenance. Please follow the instructions below： ●...
Page 5 Serv i ce M a nu a l WARNINGS 1. Electrical Safety Precautions Cut off the power supply of air conditioner before checking and maintenance. The air condition must apply specialized circuit and prohibit share the same circuit with other appliances. The air conditioner should be installed in suitable location and ensure the power plug is touchable.
Page 6 Serv i ce M a nu a l (15) If the unit is to be installed in a humid place, the circuit breaker must be installed. 2. Installation Safety Precautions Select the installation location according to the requirement of this manual. (See the requirements in installation part) Handle unit transportation with care;...
Page 7 Serv i ce M a nu a l Safety Precautions for Installing and Relocating the Unit WARNINGS ● When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant. –...
Page 8 Serv i ce M a nu a l ● When installing the unit, make sure that connection pipe is securely connected before the compressor starts running. – If compressor starts running when stop valve is open and connection pipe is not yet connected, air will be sucked in and cause pressure rise or compressor rupture, resulting in injury.
Page 9 Serv i ce M a nu a l Safety Precautions for Refrigerant ● To realize the function of the air conditioner unit, a special refrigerant circulates in the system. The used refrigerant is the fluoride R32, which is specially cleaned. The refrigerant is flammable and inodorous. Furthermore, it can leads to explosion under certain conditions.
Page 10 Serv i ce M a nu a l unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.Children should be supervised to ensure that they do not play with the appliance. Hereby, Our company, declares that this Air Conditioner is in compliance with the essential requirement and other relevant provisions of RE Directive 2014/53/EU.
Page 11 Serv i ce M a nu a l Safety Operation of Flammable Refrigerant 1. Qualification Requirement for Installation and Maintenance Man ● All the work men who are engaging in the refrigeration system should bear the valid certification awarded by the authoritative organization and the qualification for dealing with the refrigeration system recognized by this industry.
Page 12 Serv i ce M a nu a l Charge Floor Window Wall Ceiling amount (kg) location mounted mounted mounted 37.8 13.6 41.5 45.4 16.3 49.4 17.8 53.6 19.3 58.1 20.9 62.6 22.6 67.4 24.3 72.3 77.3 27.9 82.6 29.8 31.7 93.6 33.7 10.4...
Page 13 Serv i ce M a nu a l 3. Maintenance Notes Check whether the maintenance area or the room area meet the requirement of the nameplate. — It's only allowed to be operated in the rooms that meet the requirement of the nameplate.
Page 14 Serv i ce M a nu a l 5. Filling the Refrigerant ● Use the refrigerant filling appliances specialized for R32. Make sure that different kinds of refrigerant wont contaminate with each other. ● The refrigerant tank should be kept upright at the time of filling refrigerant. ●...
Page 15 Serv i ce M a nu a l Specialist's Manual ● The following checks shall be applied to installations using flammable refrigerants: — the charge size is in accordance with the room size within which the refrigerant containing parts are installed; —...
Page 16 Serv i ce M a nu a l repair to the refrigerating system, DD.4.3 to DD.4.7 shall be completed prior to conducting work on the system. ● Work procedure Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.
Page 17 Serv i ce M a nu a l shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere. ● Checks to the refrigerating equipment Where electrical components are being changed, they shall be fit for the purpose and to the correct specification.
Page 18 Serv i ce M a nu a l — that no live electrical components and wiring are exposed while charging, recovering or purging the system; — that there is continuity of earth bonding. ● Repairs to sealed components During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc.
Page 19 Serv i ce M a nu a l ● Cabling Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
Page 20 Serv i ce M a nu a l — remove refrigerant; — purge the circuit with inert gas; — evacuate; — purge with inert gas; — open the circuit by cutting or brazing. The refrigerant charge shall be recovered into the correct recovery cylinders. For appliances containing flammable refrigerants, the system shall be "flushed"...
Page 21 Serv i ce M a nu a l Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak-tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the site.
Page 22 Serv i ce M a nu a l When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equipment are removed from site promptly and all isolation valves on the equipment are closed off. Recovered refrigerant shall not be charged into another refrigerating system unless it has been cleaned and checked.
Page 23 Serv i ce M a nu a l If compressors or compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that flammable refrigerant does not remain within the lubricant. The evacuation process shall be carried out prior to returning the compressor to the suppliers.
Page 24 Serv i ce M a nu a l 2. Summary 2.1 Indoor Unit panel Remote Controller YBE1FB9 YBE1FB12 On/Off On/Off Wifi Wifi Health Health On/Off On/Off Wifi Wifi Health Health UD-swing UD-swing Humidity Humidity LR-swing LR-swing UD-swing UD-swing Humidity Humidity LR-swing LR-swing Timer...
Page 25 Serv i ce M a nu a l 2.2 Outdoor Unit GWH09AVCXB-K6DNA1B/O GWH09AVCXB-K6DNA1C/O GWH12AVCXD-K6DNA1A/O GWH12AVCXD-K6DNA1F/O GWH09AVDXE-K6DNA1A/O GWH12AVDXE-K6DNA1A/O GWH18AVDXE-K6DNA1A/O...
Page 26 Serv i ce M a nu a l GWH18AVDXF-K6DNA1A/O GWH18AVDXF-S6DNA1D/O GWH24AVEXF-K6DNA1A/O GWH24AVEXH-K6DNA1B/O...
Page 27 Serv i ce M a nu a l 2.3 Model List Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller CB601W00400 CB601000400 (LCLH) CB601N00400 CB601W00401 CB601000401 (LC) YBE1FB9 CB601W00400 CB601000402 (LCLH) CB601N00402 CB601W00401 CB601000403 (LC) CB601000404 CB601N00404...
Page 28 Serv i ce M a nu a l Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller CB601006600 CB601N06600 CB601W06600 CB601006601 CB601N06601 CB601W06601 YBE1FB9 GWH12AVCXD-K6DNA1F GWH12AVCXD-K6DNA1F/I GWH12AVCXD-K6DNA1F/O CB601006602 CB601N06602 CB601W06600 CB601006603 CB601N06603 YBE1FB12 GWH12AVDXE-K6DNA1A CB601007400 GWH12AVDXE-K6DNA1A/I CB601N07400...
Page 29 Serv i ce M a nu a l Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller CB601W00200 CB601000200 (LCLH) CB601N00200 CB601W00201 CB601000201 (LC) CB601W00200 CB601000204 YBE1FB9 (LCLH) CB601N00204 CB601W00201 CB601000205 (LC) CB601000206 CB601N00206 CB601W00200 CB601000207 CB601N00207...
Page 30 Serv i ce M a nu a l 3. Specifications 3.1 Specification Sheet Basic Parameters Model GWH09AVCXB-K6DNA1B CB601000400/CB601000402/ CB601000401/CB601000403/ Product Code CB601000404/CB601000405/ CB601000407/CB601000408/ CB601000406/CB601000411 CB601000409/CB601000410 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 3000 Cooling Power Input...
Page 31 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH09AVCXB-K6DNA1B/I CB601N00400/CB601N00402/ CB601N00400/CB601N00402/ Indoor Unit Product Code CB601N00404/CB601N00405/ CB601N00404/CB601N00405/ CB601N00406/CB601N00411 CB601N00406/CB601N00410 Fan Type Cross-flow Fan Diameter Length (D×L) Ф94×630 Cooling Speed r/min 1350/1200/1100/1000/920/850/750/500 Heating Speed r/min 1300/1200/1120/1050/980/900/850 Fan Motor Power Output Fan Motor RLA...
Page 32 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH09AVCXB-K6DNA1B/O Outdoor Unit Product Code CB601W00400 (LCLH) CB601W00401 (LC) Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent Compressor Type Rotary Compressor LRA.
Page 33 Serv i ce M a nu a l Fan Diameter Ф400 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 34 Serv i ce M a nu a l Basic Parameters Model GWH09AVCXB-K6DNA1C Product Code CB601003700/CB601003701/CB601003702 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 3000 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1950...
Page 35 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH09AVCXB-K6DNA1C/I Indoor Unit Product Code CB601N03700/CB601N03701/CB601N03702 Fan Type Cross-flow Fan Diameter Length (D×L) Ф94×630 Cooling Speed r/min 1350/1200/1100/1000/920/850/750/500 Heating Speed r/min 1300/1120/1060/1000/960/900/850 Fan Motor Power Output Fan Motor RLA 0.22 Fan Motor Capacitor...
Page 36 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH09AVCXB-K6DNA1C/O Outdoor Unit Product Code CB601W03700 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A066zC170S Compressor Oil FW68DA(FW68L) or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 1.71 Compressor Power Input...
Page 37 Serv i ce M a nu a l Fan Diameter Φ400 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 38 Serv i ce M a nu a l Basic Parameters Model GWH09AVDXE-K6DNA1A Product Code CB601006700 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 3700 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1750...
Page 39 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH09AVDXE-K6DNA1A/I Indoor Unit Product Code CB601N06700 Fan Type Cross-flow Fan Diameter Length (D×L) Ф108×691 Cooling Speed r/min 1080/1040/1000/960/800/700/600/500 Heating Speed r/min 1100/1000/950/900/850/750/700 Fan Motor Power Output Fan Motor RLA Fan Motor Capacitor μF...
Page 40 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH09AVDXE-K6DNA1A/O Outdoor Unit Product Code CB601W06700 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method...
Page 41 Serv i ce M a nu a l Fan Diameter Ф445 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 42 Serv i ce M a nu a l Basic Parameters Model GWH12AVCXD-K6DNA1A CB601000100/CB601000104/ CB601000101/CB601000105/ CB601000106/CB601000107/ Product Code CB601000109/CB601000110/ CB601000108/CB601000112/ CB601000111/CB601000113 CB601000114 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3500 Heating Capacity 3810 Cooling Power Input Heating Power Input Cooling Current Input 4.18...
Page 43 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH12AVCXD-K6DNA1A/I CB601N00100/CB601N00104/ CB601N00100/CB601N00104/ CB601N00106/CB601N00107/ Indoor Unit Product Code CB601N00108/CB601N00107/ CB601N00108/CB601N00109/ CB601N00106/CB601N00109 CB601N00114 Fan Type Cross-flow Fan Diameter Length (D×L) Ф94×630 Cooling Speed r/min 1450/1200/1120/1050/980/920/750/500 Heating Speed r/min 1450/1200/1140/1080/1020/960/900 Fan Motor Power Output...
Page 44 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH12AVCXD-K6DNA1A/O Outdoor Unit Product Code CB601W00100 (LCLH) CB601W00101 (LC) Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A098zE170 Compressor Oil ZE-GLES RB68GX or equivalent Compressor Type Rotary Compressor LRA.
Page 45 Serv i ce M a nu a l Fan Diameter Ф420 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 46 Serv i ce M a nu a l Basic Parameters Model GWH12AVCXD-K6DNA1F CB601006600/CB601006602/ Product Code CB601006601 CB601006603 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3520 Heating Capacity 3810 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input...
Page 47 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH12AVCXD-K6DNA1F/I CB601N06600/CB601N06602/ Indoor Unit Product Code CB601N06601 CB601N06603 Fan Type Cross-flow Fan Diameter Length (D×L) Ф94×630 Cooling Speed r/min 1400/1200/1120/1050/980/920/750/500 Heating Speed r/min 1400/1140/1080/1020/960/900/850 Fan Motor Power Output Fan Motor RLA 0.22 Fan Motor Capacitor...
Page 48 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH12AVCXD-K6DNA1F/O Outdoor Unit Product Code CB601W06600 CB601W06601 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method...
Page 49 Serv i ce M a nu a l Fan Diameter Φ420 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 50 Serv i ce M a nu a l Basic Parameters Model GWH12AVDXE-K6DNA1A Product Code CB601007400 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3520 Heating Capacity 3810 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input Rated Input 1750...
Page 51 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH12AVDXE-K6DNA1A/I Indoor Unit Product Code CB601N07400 Fan Type Cross-flow Fan Diameter Length (D×L) Ф108×691 Cooling Speed r/min 1080/1040/1000/960/800/700/600/500 Heating Speed r/min 1100/1000/950/900/850/750/700 Fan Motor Power Output Fan Motor RLA Fan Motor Capacitor μF...
Page 52 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH12AVDXE-K6DNA1A/O Outdoor Unit Product Code CB601W07400 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A088zE170S Compressor Oil FW68L Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method...
Page 53 Serv i ce M a nu a l Fan Diameter Φ445 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 54 Serv i ce M a nu a l Basic Parameters Model GWH18AVDXE-K6DNA1A CB601000300/CB601000304/ CB601000301/CB601000305/ CB601000306/CB601000307/ Product Code CB601000310/CB601000311/ CB601000308/CB601000313/ CB601000312/CB601000314 CB601000315 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5600 Cooling Power Input 1472 Heating Power Input 1365...
Page 55 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH18AVDXE-K6DNA1A/I CB601N00300/CB601N00304/ CB601N00300/CB601N00304/ CB601N00306/CB601N00307/ Indoor Unit Product Code CB601N00308/CB601N00307/ CB601N00308/CB601N00313/ CB601N00306/CB601N00313 CB601N00315 Fan Type Cross-flow Fan Diameter Length (D×L) Ф108×691 Cooling Speed r/min 1080/1040/1000/960/800/700/650/500 Heating Speed r/min 1200/1150/1040/980/930/880/800 Fan Motor Power Output...
Page 56 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH18AVDXE-K6DNA1A/O Outdoor Unit Product Code CB601W00300 (LCLH) CB601W00301 (LC) Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-M130zF170 Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA.
Page 57 Serv i ce M a nu a l Fan Diameter Ф445 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 58 Serv i ce M a nu a l Basic Parameters Model GWH18AVDXF-K6DNA1A CB601005000/CB601005002/ Product Code CB601005001 CB601005003 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5600 Cooling Power Input 1413 Heating Power Input 1365 Cooling Current Input 6.45...
Page 59 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH18AVDXF-K6DNA1A/I CB601N05000/CB601N05002/ Indoor Unit Product Code CB601N05001 CB601N05003 Fan Type Cross-flow Fan Diameter Length (D×L) Ф108×691 Cooling Speed r/min 1080/1040/1000/960/800/700/650/500 Heating Speed r/min 1200/1150/1040/980/930/880/800 Fan Motor Power Output Fan Motor RLA 0.25 Fan Motor Capacitor...
Page 60 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH18AVDXF-K6DNA1A/O Outdoor Unit Product Code CB601W05000 CB601W05001 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-A110zX170S Compressor Oil FW68L(FW68DA) or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 5.13 Compressor Power Input...
Page 61 Serv i ce M a nu a l Fan Diameter Φ520 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 62 Serv i ce M a nu a l Basic Parameters Model GWH18AVDXF-S6DNA1D Product Code CB601007600 Rated Voltage 220-240 Power Rated Frequency 50/60 Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5600 Cooling Power Input 1359 Heating Power Input 1400 Cooling Current Input 6.03...
Page 63 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH18AVDXF-S6DNA1D/I Indoor Unit Product Code CB601N07600 Fan Type Cross-flow Fan Diameter Length (D×L) Ф108x691 Cooling Speed r/min 1080/1040/1000/960/800/700/650/500 Heating Speed r/min 1200/1150/1040/980/930/880/800 Fan Motor Power Output Fan Motor RLA 0.25 Fan Motor Capacitor...
Page 64 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH18AVDXF-S6DNA1D/O Outdoor Unit Product Code CB601W07600 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-A150zX170S Compressor Oil FW68L(FW68DA) or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 11.35 Compressor Power Input...
Page 65 Serv i ce M a nu a l Fan Diameter Φ520 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 66 Serv i ce M a nu a l Basic Parameters Model GWH24AVEXF-K6DNA1A CB601000200/CB601000204/ CB601000201/CB601000205/ Product Code CB601000206/CB601000207/ CB601000210/CB601000211/ CB601000208/CB601000213 CB601000212/CB601000214 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 7100 Heating Capacity 7800 Cooling Power Input 1868 Heating Power Input 1902...
Page 67 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH24AVEXF-K6DNA1A/I CB601N00200/CB601N00204/ CB601N00200/CB601N00204/ Indoor Unit Product Code CB601N00206/CB601N00207/ CB601N00207/CB601N00208/ CB601N00208/CB601N00213 CB601N00206/CB601N00213 Fan Type Cross-flow Fan Diameter Length (D×L) Ф111.5×830 Cooling Speed r/min 1250/1100/1000/950/900/850/800/650 Heating Speed r/min 1400/1250/1100/1050/1000/900/850 Fan Motor Power Output Fan Motor RLA...
Page 68 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH24AVEXF-K6DNA1A/O Outdoor Unit Product Code CB601W00200 (LCLH) CB601W00201 (LC) Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-A150zX170S Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA.
Page 69 Serv i ce M a nu a l Fan Diameter Ф520 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 70 Serv i ce M a nu a l Basic Parameters Model GWH24AVEXH-K6DNA1B CB601005400/CB601005402/ Product Code CB601005401 CB601005403 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 7100 Heating Capacity 7800 Cooling Power Input 1775 Heating Power Input 2000 Cooling Current Input Heating Current Input...
Page 71 Serv i ce M a nu a l Indoor Unit Parameters Indoor Unit Model GWH24AVEXH-K6DNA1B/I CB601N05400/CB601N05402/ Indoor Unit Product Code CB601N05401 CB601N05403 Fan Type Cross-flow Fan Diameter Length (D×L) Φ111.5×830 Cooling Speed r/min 1250/1100/1000/950/900/850/800/650 Heating Speed r/min 1400/1250/1100/1050/1000/900/850 Fan Motor Power Output Fan Motor RLA 0.85 Fan Motor Capacitor...
Page 72 Serv i ce M a nu a l Outdoor Unit Parameters Outdoor Unit Model GWH24AVEXH-K6DNA1B/O Outdoor Unit Product Code CB601W05400 CB601W05401 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-B221zX070S Compressor Oil FW68DA or equivalent Compressor Type Twin Rotary Compressor LRA.
Page 73 Serv i ce M a nu a l Fan Diameter Φ570 Defrosting Method Automatic Defrosting Climate Type Isolation Moisture Protection IPX4 Permissible Excessive Operating Pressure for the Discharge Side Permissible Excessive Operating Pressure for the Suction Side Sound Pressure Level dB (A) Sound Power Level dB (A)
Page 74 Serv i ce M a nu a l 3.2 Capacity Variation Ratio According to Temperature Cooling Condition Cooling Indoor: DB27°C WB19°C Indoor air flow: Super High Pipe length: 5m -15 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp.
Page 75 Condition Cooling Indoor: DB27°C WB19°C Indoor air flow: Super High Serv i ce M a nu a l Pipe length: 5m -15 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp. (°C) Cooling Condition Cooling Condition Heating Indoor: DB27°C WB19°C Indoor: DB20°C Indoor air flow: Super High...
Page 76 Condition Cooling Condition Heating Indoor: DB27°C WB19°C Indoor: DB20°C Serv i ce M a nu a l Indoor air flow: Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m -15 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp.
Page 77 Indoor: DB27°C WB19°C Condition Heating Indoor air flow: Super High Indoor: DB20°C Pipe length: 5m Serv i ce M a nu a l Indoor air flow: Super High Pipe length: 5m -20 -15 -10 -5 5 10 15 20 25 30 35 40 45 50 55 Outdoor temp.
Page 78 Pipe length: 5m Indoor air flow: Super High Pipe length: 5m Serv i ce M a nu a l -30 -25 -20 -15 -10 -15 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp. (°C) Outdoor temp. (°C) The model matched with outdoor unit: GWH09AVDXE-K6DNA1A/O GWH09AVCXB-K6DNA1C...
Page 79 Indoor: DB27°C WB19°C Indoor air flow: Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m Serv i ce M a nu a l -20 -15 -10 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp.
Page 80 Indoor: DB27°C WB19°C Indoor: DB20°C Indoor air flow: Super High Indoor air flow: Super High Pipe length: 5m Serv i ce M a nu a l Pipe length: 5m -15 -10 -5 10 15 20 25 30 35 40 45 50 -20 -15 -10 Outdoor temp.
Page 81 Indoor air flow: Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m Serv i ce M a nu a l -20 -15 -10 -5 10 15 20 25 30 35 40 45 50 Outdoor temp. (°C) Outdoor temp.
Page 82 Serv i ce M a nu a l 3.3 Cooling and Heating Data Sheet in Rated Frequency Cooling Rated cooling Pressure of gas pipe Inlet and outlet pipe condition (°C) connecting indoor temperature of heat Fan speed Fan speed (DB/WB) and outdoor unit exchanger Model...
Page 83 Serv i ce M a nu a l 4. Outline Dimension Diagram 4.1 Indoor Unit Φ55 205.3 561.5 203.2 Φ55/Φ70 275.4 561.5 273.1 Φ55/Φ70 NOTE: Choose the diameter of piping hole according to the pipe-holesleeve.
Page 84 Serv i ce M a nu a l Unit: mm Indoor Unit Model 1110...
Page 85 Serv i ce M a nu a l 4.2 Outdoor Unit NOTE: The appearance of outdoor unit is for reference only. Unit: mm Outdoor Unit Model GWH09AVCXB-K6DNA1B/O GWH09AVCXB-K6DNA1C/O GWH12AVCXD-K6DNA1A/O GWH12AVCXD-K6DNA1F/O GWH12AVDXE-K6DNA1A/O GWH09AVDXE-K6DNA1A/O GWH18AVDXE-K6DNA1A/O GWH18AVDXF-K6DNA1A/O GWH18AVDXF-S6DNA1D/O 165.6 GWH24AVEXF-K6DNA1A/O GWH24AVEXH-K6DNA1B/O 1000...
Page 86 Liquid (condenser) pipe side Serv i ce M a nu a l Valve Electron Strainer expansion 5. Refrigerant System Diagram valve COOLING Heat pump model Outdoor unit Indoor unit pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator)
Page 87 Serv i ce M a nu a l 6. Electrical Part 6.1 Wiring Diagram Instruction Symbol Symbol Color Symbol Symbol Color White Blue Yellow Black Orange YEGN Yellow/Green Gray Violet Jumper cap Green COMP Compressor Brown Grounding wire NOTE: Jumper cap is used to determine fan speed and the swing angle of horizontal louver for this model.
Page 88 Serv i ce M a nu a l List of Electrical Wiring Diagrams for Indoor Unit Indoor Unit Wiring Diagram Code Indoor Unit Model Product Code for Indoor Unit GWH09AVCXB-K6DNA1B/I CB601N00400 600007067665 GWH09AVCXB-K6DNA1B/I CB601N00402 600007067665 GWH09AVCXB-K6DNA1B/I CB601N00404 600007067665 GWH09AVCXB-K6DNA1B/I CB601N00405 600007067665 GWH09AVCXB-K6DNA1B/I CB601N00406...
Page 89 Serv i ce M a nu a l Indoor Unit Wiring Diagram Code Indoor Unit Model Product Code for Indoor Unit GWH12AVCXD-K6DNA1F/I CB601N06600 60000706766501 GWH12AVCXD-K6DNA1F/I CB601N06601 60000706766501 GWH12AVCXD-K6DNA1F/I CB601N06602 60000706766501 GWH12AVCXD-K6DNA1F/I CB601N06603 60000706766501 GWH12AVDXE-K6DNA1A/I CB601N07400 600007067712 GWH18AVDXE-K6DNA1A/I CB601N00300 600007067712 GWH18AVDXE-K6DNA1A/I CB601N00304 600007067712 GWH18AVDXE-K6DNA1A/I...
Page 90 Serv i ce M a nu a l Indoor Unit Wiring Diagram Code Indoor Unit Model Product Code for Indoor Unit GWH24AVEXF-K6DNA1A/I CB601N00206 600007068329 GWH24AVEXF-K6DNA1A/I CB601N00207 600007068329 GWH24AVEXF-K6DNA1A/I CB601N00208 600007068329 GWH24AVEXF-K6DNA1A/I CB601N00213 600007068329 GWH24AVEXH-K6DNA1B/I CB601N05400 600007068329 GWH24AVEXH-K6DNA1B/I CB601N05401 600007068329 GWH24AVEXH-K6DNA1B/I CB601N05402 600007068329 GWH24AVEXH-K6DNA1B/I...
Page 91 Serv i ce M a nu a l OPTIONAL OPTIONAL TUBE ROOM WIRED GATE TEMP. TEMP. RECEIVER AND CONTROLLER CONTROL MOTOR SENSOR SENSOR DISPLAY BOARD DISPLAY (DRY-C) T-SENSOR COM-MANUAL TERMINAL DISP DC-MOTOR DOOR-C BLOCK N(N1) N(1) 600007067665 COM-OUT PRINTED CIRCUIT BOARD JUMP 3 BN AC-L...
Page 92 Serv i ce M a nu a l OPTIONAL OPTIONAL OPTIONAL TUBE ROOM GATE TEMP. TEMP. RECEIVER AND MOTOR CONTROL WIRED SENSOR SENSOR DISPLAY BOARD MODULE CONTROLLER AP1 DISPLAY θ θ TERMINAL DOOR-C COM-MANUAL T-SENSOR DISP DC-MOTOR BLOCK (DRY-C) N(N1) N(1) COM-OUT 600007067712...
Page 93 Serv i ce M a nu a l List of Electrical Wiring Diagrams for Outdoor Unit Outdoor Unit Wiring Diagram Code Outdoor Unit Model Product Code for Outdoor Unit GWH09AVCXB-K6DNA1B/O CB601W00400 600007066260 GWH09AVCXB-K6DNA1B/O CB601W00401 600007066260 GWH09AVCXB-K6DNA1C/O CB601W03700 600007066260 GWH09AVDXE-K6DNA1A/O CB601W06700 600007068750 GWH12AVCXD-K6DNA1A/O CB601W00100...
Page 94 Serv i ce M a nu a l OPTIONAL OPTIONAL OPTIONAL WARNING Bottom Please don't touch any OUTTUBE OUTROOM EXHAUST 4-WAY ELECTRONIC EXPANSION Band VALVE terminal when the machine is TEMP. TEMP. TEMP. VALVE Heater SENSOR SENSOR SENSOR running,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock !
Page 95 Serv i ce M a nu a l WARNING OPTIONAL OPTIONAL Please don't touch any terminal when the machine is BOTTOM OUTROOM OUTTUBE EXHAUST ELECTRONIC BAND running, stopping or has been TEMP. TEMP. EXPANSION TEMP. HEATER VALVE SENSOR SENSOR SENSOR powered off for less than 30 minutes to prevent the risk of electric shock !
Page 96 Serv i ce M a nu a l WARNING OPTIONAL BOTTOM Please don't touch any ELECTRIC OUTTUBE OUTROOM EXHAUST terminal when the machine is MOTOR HEATER TEMP. TEMP. TEMP. running, stopping or has been SENSOR SENSOR SENSOR YEGN powered off for less than 30 minutes to prevent the risk of electric shock ! MAGNETIC RING...
Page 97 Serv i ce M a nu a l 6.2 Printed Circuit Board Diagram List of Printed Circuit Board Diagrams for Indoor Unit Indoor Unit Printed Circuit Board Indoor Unit Model Product Code Model for Indoor Unit GWH09AVCXB-K6DNA1B/I CB601N00400 GRJ869-A4 GWH09AVCXB-K6DNA1B/I CB601N00402 GRJ869-A4 GWH09AVCXB-K6DNA1B/I...
Page 98 Serv i ce M a nu a l Indoor Unit Printed Circuit Board Indoor Unit Model Product Code Model for Indoor Unit GWH12AVCXD-K6DNA1A/I CB601N00109 GRJ869-A4 GWH12AVCXD-K6DNA1A/I CB601N00114 GRJ869-A4 GWH12AVCXD-K6DNA1F/I CB601N06600 GRJ869-A4 GWH12AVCXD-K6DNA1F/I CB601N06601 GRJ869-A4 GWH12AVCXD-K6DNA1F/I CB601N06602 GRJ869-A4 GWH12AVCXD-K6DNA1F/I CB601N06603 GRJ869-A4 GWH12AVDXE-K6DNA1A/I CB601N07400 GRJ869-A4...
Page 99 Serv i ce M a nu a l Indoor Unit Printed Circuit Board Indoor Unit Model Product Code Model for Indoor Unit GWH24AVEXF-K6DNA1A/I CB601N00200 GRJ869-A4 GWH24AVEXF-K6DNA1A/I CB601N00204 GRJ869-A4 GWH24AVEXF-K6DNA1A/I CB601N00206 GRJ869-A4 GWH24AVEXF-K6DNA1A/I CB601N00207 GRJ869-A4 GWH24AVEXF-K6DNA1A/I CB601N00208 GRJ869-A4 GWH24AVEXF-K6DNA1A/I CB601N00213 GRJ869-A4 GWH24AVEXH-K6DNA1B/I CB601N05400 GRJ869-A4...
Page 100 Serv i ce M a nu a l GRJ869-A4 See table on next page...
Page 101 Serv i ce M a nu a l Name Name Rod Drive Stepping Motor Needle Neutral Wire Insertion Stand Fuse 11 Left & Right Swing Needle Stand Live Wire Insertion 12 Display Board Needle Stand Earthing Wire Insertion 13 Fresh air Function Needle Stand Communication Wire Insertion 14 Temperature Sensor Needle Stand Brushless DC Motor Needle Stand...
Page 102 Serv i ce M a nu a l List of Printed Circuit Board Diagrams for Outdoor Unit Outdoor Unit Printed Circuit Board Outdoor Unit Model Product Code Model for Outdoor Unit GWH09AVCXB-K6DNA1B/O CB601W00400 GRJW902-A GWH09AVCXB-K6DNA1B/O CB601W00401 GRJW902-A GWH09AVCXB-K6DNA1C/O CB601W03700 GRJW902-A GWH09AVDXE-K6DNA1A/O CB601W06700 GRJW919-A...
Page 103 Serv i ce M a nu a l GRJW902-A See table on next page...
Page 104 Serv i ce M a nu a l Name Name Earthing Wire Insertion Outdoor Fan Needle Stand Electronic Expansion Valve Needle Live Wire Insertion Stand Neutral Wire Insertion Compressor Overload Needle Stand Communication Wire Insertion 10 Temperature Sensor Needle Stand Four-way Valve Needle Stand 11 EEP Flash Drive Needle Stand Chassis Electric Heating Belt...
Page 105 Serv i ce M a nu a l GRJW919-A 10 11 See table on next page...
Page 106 Serv i ce M a nu a l Name Name Earthing Wire Insertion Two-way Valve Needle Stand Electronic Expansion Valve Needle Live Wire Insertion Stand Communication Wire Insertion Outdoor Fan Needle Stand Neutral Wire Insertion 10 Temperature Sensor Needle Stand Chassis Electric Heating Belt 11 Compressor Overload Needle Stand Needle Stand...
Page 107 Serv i ce M a nu a l GRJW918-A3 9 10 14 13 See table on next page...
Page 108 Serv i ce M a nu a l Name Name Earthing Wire Insertion Outdoor Fan Needle Stand Live Wire Insertion Temperature Sensor Needle Stand Communication Wire Insertion 10 Compressor Overload Needle Stand Neutral Wire Insertion 11 DRED Power Supply Needle Stand Four-way Valve Needle Stand 12 Compressor Needle Stand Chassis Electric Heating Belt...
Page 109 Serv i ce M a nu a l GRJW924-A8 12 11 See table on next page...
Page 110 Serv i ce M a nu a l Name Name Earthing Wire Insertion Outdoor Fan Needle Stand Live Wire Insertion Temperature Sensor Needle Stand Neutral Wire Insertion Compressor Overload Needle Stand Communication Wire Insertion 10 Compressor Needle Stand Electronic Expansion Valve Needle Four-way Valve Needle Stand Stand Chassis Electric Heating Belt...
Page 111 Serv i ce M a nu a l GRJW936-A4 See table on next page...
Page 112 Serv i ce M a nu a l Name Name High Pressure Protection Needle Neutral Wire Insertion Stand Earthing Wire Insertion 10 Temperature Sensor Needle Stand Live Wire Insertion 11 Compressor Overload Needle Stand Electronic Expansion Valve Needle Communication Wire Insertion Stand DRED Communication Needle Four-way Valve Needle Stand...
Page 113 Serv i ce M a nu a l 7. Function and Control 7.1 Remote Controller Introduction for YBE1FB9 and YBE1FB12 Quiet Set fan speed Turbo mode Send signal Auto mode Cool mode Dry mode Fan mode Heat mode X-FAN function Humidity control Power limiting operation Set temperature...
Page 114 Serv i ce M a nu a l Introduction for buttons on remote controller NOTE: ● This is a general use remote controller. It could be used for the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the remote controller, the unit will keep the original running status.
Page 115 Serv i ce M a nu a l and no heating. Press Fan button to adjust fan speed. Press button to adjust fan blowing angle. ● When selecting heat mode, the air conditioner operates under heat mode. Press + or – button to adjust set temperature. Press Fan button to adjust fan speed.
Page 116 Serv i ce M a nu a l ● Having set X-FAN function on: After turning off the unit by pressing On/ Off button, indoor fan will continue running for a few minutes at low speed. In this period, hold fan speed button for 2s to stop indoor fan directly.
Page 117 Serv i ce M a nu a l NOTE: ● Health function and UVC lamp are only available for some models. UD-swing button Press this button can select up & down swing angle. Fan blow angle can be selected circularly as below: no display (horizontal louvers stops at current position)
Page 118 Serv i ce M a nu a l Humidity button Under cooling mode, press this button can select humidity control with cooling mode, smart dehumidification with cooling mode, and general cooling mode, and they can be set to operate circularly. (blink 5s) humidity control smart dehumidification general...
Page 119 Serv i ce M a nu a l ● When continuous dehumidification is set, the remote controller will display the remote controller and indoor unit will display Temperature can't be adjusted under continuous dehumidification mode. ● Under continous dehumidification mode, the unit always works under dehumidification status;...
Page 120 Serv i ce M a nu a l Timer button ● At ON status, press this button once can set TIMER OFF. The character of HOUR and OFF will flash. Press + or – button within 5s can adjust the time of TIMER ON.
Page 121 Serv i ce M a nu a l setting sleep curve and blink (The first entering will display according to the initial curve setting value of original factory); Adjust + and – button, could change the corresponding setting temperature, after adjusted, press Health button for confirmation; At this time, 1hour will be automatically increased at the timer position on the remote control, (that are 2HOUR or 3HOUR or 8HOUR), the place of setting temperature...
Page 122 Serv i ce M a nu a l Function introduction for combination buttons Energy-saving function Under cooling mode, press Mode and Timer buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to ex-factory setting to reach to the best energy-saving effect.
Page 123 Serv i ce M a nu a l blank No Setting ● Maximum power limited under the mode is lower than that of mode. ● If you want to cancel the power limiting function, press Mode and Sleep buttons simultaneously till the icon in remote controller is not displayed. ●...
Page 124 Serv i ce M a nu a l ● There may be some measuring deviation for humidity detection and photosensitiveness detection. Clean reminder function of filter The reminder function is defaulted to be OFF. Hold On/Off and buttons simultaneously for 5s to turn it on. The buzzer will give out sound for 0.5s and the dual-8 nixie tube on the display will be on for 3s;...
Page 125 Serv i ce M a nu a l will operate under current set temperature and fan speed for 20 minutes. 20 minutes later, the set temperature and the fan speed for the remote controller and the indoor unit will turn to the status before quick cooling. NOTE: ●...
Page 126 Serv i ce M a nu a l NOTE: ● When you feel that the cooling and heating effect is poor, please press Fan button to other fan speed or press Sleep button to exit the night mode. ● The night mode can only work under normal ambient temperature. ●...
Page 127 Serv i ce M a nu a l Replacement of batteries in temote controller reinstall battery remove Cover of battery box Press the back side of remote controller marked with , as shown in the fig, and then push out the cover of battery box along the arrow direction. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of + polar and –...
Page 128 Serv i ce M a nu a l 7.2 Brief Description of Models and Functions 1. Main Functions 1.1 Temperature Control ● Definitions of Temperatures The definitions of temperatures are classified as following. ● Room temperature: temperature of lower part of the room ●...
Page 129 Serv i ce M a nu a l ● I Feel mode In order to make room thermistor temperature almost same as the actual operation environment temperature, I Feel mode is designed. After I Feel mode is turned on, the remote controller will send the ambient temperature to the controller of indoor unit intermittently and constantly adjusts the calculated target temperature to make the operation of the air conditioner more suitable for users' needs.
Page 130 Serv i ce M a nu a l Once the set temperature is reached, the energy saving operation enables to maintain the room temperature at low power. ● Frequency Limits The following functions regulate the maximum frequency: ● Discharge pipe temperature control. Refer to 3.4. ●...
Page 131 Serv i ce M a nu a l in the downward direction while in heating operation, which will provide a comfortable wind that will not come in direct contact with people. When heating mode is just started up, the air guide louver will swing to the position where the cold air won't blow to the people for cold air prevention.
Page 132 Serv i ce M a nu a l the remote controller). If X-fan function is turned, when the unit is turned off by the remote controller, the indoor fan will still operate for several minutes at the low fan speed. When the unit is operating under X-fan mode, the complete unit will be turned off immediately if use the remote controller to turn off the X-fan function.
Page 133 Serv i ce M a nu a l Good sleep mode before you get up, set tempera- light sleep deep sleep wake up phase ture will decrease or increase Temperature automatically to refresh you in the morning. Time DIY mode you can set temperature curve light sleep deep sleep wake up...
Page 134 Serv i ce M a nu a l 1.10 Timer Function The timing function of the complete unit is divided into general timer and clock timer, which can be switched by equipping different remote controls. General timer function ● Timer ON function: Timer ON time can be set under unit off status (power is put through) through the remote control.
Page 135 Serv i ce M a nu a l 1.11 Refrigerant Recycling Function Under cooling mode, the unit will enter the refrigerant recycling mode after receiving the command set by the remote control, and the compressor will run at high frequency for refrigerant recycling. Control measure: within 5min of energizing, turning on the unit in cooling mode with set temperature of 16°C , continuously press light button for 3 times within 3s to enter refrigerant recycling mode.
Page 136 Serv i ce M a nu a l 1.13 Comfortable Energy-saving Mode Under cooling mode, when the comfortable energy-saving command is received from the remote control, the controller enters the comfortable energy-saving mode; the indoor unit executes set temperature of 27°C, and the horizontal louver turns to the angle that can blow cold air directly to the human body.
Page 137 Serv i ce M a nu a l 1.15 New Access Control Function Switch control function Customers are required to install the dry contact and wire controller by themselves to detect whether there is anyone in the room through the dry contact.
Page 138 Serv i ce M a nu a l 1.17 Other Funtions Auto clean function When the remote control is under unit off status, holding the MODE button and FAN button for 5 seconds at the same time, the remote control displays "CL", and the unit enters the auto clean mode.
Page 139 Serv i ce M a nu a l Auto button If this button is pressed under unit off status, the complete unit will operate in auto mode and IDU fan will operate at auto speed and swing function will be turned on.
Page 140 Serv i ce M a nu a l 2. Thermistor Functions 2.1 Outdoor Heat Exchanger Thermistor In cooling operation, the outdoor heat exchanger thermistor is used for high temperature protection. In heating operation, the outdoor heat exchanger thermistor is used for defrost control. 2.2 Discharge Pipe Thermistor The discharge pipe thermistor is used for controlling discharge pipe temperature.
Page 141 Serv i ce M a nu a l 3. Control Specification 3.1 Frequency Control ● Control Parameters The frequency of the compressor is controlled by the following 2 parameters: The load condition of the operating indoor unit The difference between the room thermistor temperature and the target temperature The target frequency is adapted by additional parameters in the following cases:...
Page 142 Serv i ce M a nu a l Once the set temperature is reached, the energy saving operation enables to maintain the room temperature at low power. 3.2 Power limiting operation The function is for limiting power of the whole unit. Press "Mode" and "Sleep" buttons simultaneously.
Page 143 Serv i ce M a nu a l 3.4 Discharge Pipe Temperature Control The discharge pipe temperature is used as the internal temperature of the compressor. If the discharge pipe temperature rises above a certain level, the upper limit of frequency is set to keep the discharge pipe temperature from rising furthe.
Page 144 Serv i ce M a nu a l Outdoor unit temperature under cooling mode: Model A (°C) B (°C) C (°C) 24K or above Indoor unit's pipe temperature under heating mode: Model A (°C) B (°C) C (°C) 24K or above Zone Control When the temperature reaches the stop zone, the...
Page 145 Serv i ce M a nu a l 3.8 Outdoor fan control Fan OFF control during defrosting The outdoor fan is turned OFF during defrosting. Fan OFF delay when stopped The outdoor fan is turned OFF 60 seconds after the compressor stops. The fan is started up before the compressor The outdoor fan is turned on 20 seconds beffor the compressor starts.
Page 146 Serv i ce M a nu a l the indoor unit are automatically adjusted according to the temperature of the indoor heat exchanger pipe: When the compressor starts or enters defrosting, the horizontal louver is adjusted to the first position. After the indoor heat exchanger pipe temperature rises, the horizontal louver is adjusted to the default position in heating or the set position.
Page 147 Serv i ce M a nu a l 3.10 Defrost Control ● Outline Defrosting is carried out by the cooling cycle (reverse cycle). The defrosting time or outdoor heat exchanger temperature must be more than a certain value to finish defrosting. ●...
Page 148 Serv i ce M a nu a l Model (minutes) (°C) (Hz) (Hz) (pulse) (pulse) (pulse) (pulse) (pulse) 07K, 09K 6~12 13~18 6~12 6~12 30K, 36K 6~12 : Above data are different for different models.
Page 149 Serv i ce M a nu a l 3.11 Electronic Expansion Valve Control ● Outline The following items are included in the electronic expansion valve control. ● Electronic expansion valve is fully opened Electronic expansion valve is fully opened when turning off the power. Pressure equalizing control.
Page 150 Serv i ce M a nu a l The electronic expansion valve is fully opened when cooling operation stops, and is controlled at a fixed degree during defrosting. Starting Operation Control The electronic expansion valve keeps initialized pulse 40s when the operation starts, thus preventing superheating or liquid compression.
Page 151 Serv i ce M a nu a l 3.12 Mainboard Module Overheating Protection ● Outline During operation, you can control the temperature of the mainboard module to prevent the mainboard from being damaged due to excessive temperature. ● Detail According to the temperature and voltage output of the module on the mainboard, the temperature value is determined, and then the frequency of the compressor is controlled.
Page 152 Serv i ce M a nu a l NOTICE If the unit stops for six consecutive times due to overheating protection of mainboard module, it cannot automatically resume operation, and ON/OFF shall be pressed to resume operation. 3.13 Refrigerant Lacking Protection ● Outline In the initial stage of operation under cooling or dry mode, it will be judged according to the change of outdoor heat exchanger pipe temperature, the change of indoor heat exchanger pipe temperature and the difference...
Page 153 Serv i ce M a nu a l 3.14 Malfunctions Sensor Malfunction Detection Sensor malfunction can be detected in the following thermistors: Outdoor heat exchanger thermistor Discharge pipe thermistor Outdoor temperature thermistor When the temperature sensor error is detected, the complete unit will stop for protection.
Page 154 Download and installation Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the account and add the device to achieve long-distance control and LAN control of Gree smart home appliances.
Page 155 Serv i ce M a nu a l 7.4 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud Cellular/ Home Wi-Fi Other Wi-Fi Intelligent home appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: Android system system Support iOS 7.0...
Page 156 Serv i ce M a nu a l 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm Space to the wall At least 15cm Space to the obstruction At least 50cm Drainage pipe...
Page 157 Serv i ce M a nu a l Installation Procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install wall-mounting Install the support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor...
Page 158 Serv i ce M a nu a l Main tools for installation and maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter...
Page 159 Serv i ce M a nu a l Torque wrench Open-end wrench Inner hexagon Electronic spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers...
Page 160 Serv i ce M a nu a l Pipe cutter Pipe expander Pipe bender Soldering appliance Refrigerant container Electronic scale...
Page 161 Serv i ce M a nu a l 8.2 Installation Parts-checking Name Name Indoor unit Sealing gum Outdoor unit Wrapping tape Connection pipe Support of outdoor unit Drainage pipe Fixing screw Wall-mounting frame Drainage plug (Heat pump model) Connecting cable (Power Cord) Owners manual Wall pipe Remote controller...
Page 162 Serv i ce M a nu a l 8.3 Selection of Installation Location 1. Basic Requirement Installing the unit in the following places may cause malfunction. If it is unavoidable, please consult the local dealer: The place with strong heat sources, vapors, flammable or explosive gas, or volatile objects spread in the air.
Page 163 Serv i ce M a nu a l 3. Outdoor Unit Select a location where the noise and outflow air emitted by the outdoor unit will not affect neighborhood. The location should be well ventilated and dry, in which the outdoor unit won't be exposed directly to sunlight or strong wind.
Page 164 Serv i ce M a nu a l 8.4 Electric Connection Requirement 1. Safety Precaution Must follow the electric safety regulations when installing the unit. According to the local safety regulations, use qualified power supply circuit and air switch. Make sure the power supply matches with the requirement of air conditioner. Unstable power supply or incorrect wiring may result in electric shock, fire hazard or malfunction.
Page 165 Serv i ce M a nu a l Air switch should be included magnet buckle and heating buckle function, it can protect the circuit-short and overload. (Caution: please do not use the fuse only for protect the circuit) Model Air switch capacity Power cord 09K, 12K 3G1.0...
Page 166 Serv i ce M a nu a l 8.5 Installation of Indoor Unit 1. Choosing Installation Location Recommend the installation location to the client and then confirm it with the client. 2. Install wall-mounting frame Hang the wall-mounting frame on the wall; adjust it to a horizontal position using a level meter, and then mark the screw fixing holes on the wall.
Page 167 Serv i ce M a nu a l Indoor Outdoor Drill a piping hole with a diameter of Φ55mm or Φ70mm at the selected outlet pipe position. To ensure smooth drainage, slant the piping Φ55mm Φ70mm hole on the wall slightly downward °...
Page 168 Serv i ce M a nu a l 5. Connect the Pipe of Indoor Unit Aim the pipe joint at the Pipe Pipe joint Union nut corresponding bellmouth. (As shown in Fig. 5) Fig. 5 Pretighten the union nut by hand. Open-end Adjust the torque force by referring wrench to the following sheet.
Page 169 Serv i ce M a nu a l 6. Install Drain Hose Connect the drain hose to the outlet pipe of the indoor unit. (As shown in Fig. 8 Drain hose Outlet pipe Fig. 8 Drain hose Outlet pipe Bind the joint with tape. (As shown in Fig.
Page 170 Serv i ce M a nu a l 7. Connect Wire of Indoor Unit NOTICE: ● All wires of the indoor unit and the outdoor unit should be connected by a professional. ● If the length of the power connection wire is insufficient, please contact the supplier for a new one.
Page 171 Serv i ce M a nu a l 09K, 12K, 18K, 24K N(1) brown yellow- blue black green Outdoor unit connection Fig. 13 Put the wiring cover back and then tighten the screw. Close the panel. NOTICE: The wiring board is for reference only. Please refer to the actual one.
Page 172 Serv i ce M a nu a l 8. Bind up Pipe Indoor and outdoor power cord Indoor unit pipe Bind up the connection pipe, power cord, and drain hose with the band. Liquid (As shown in Fig. 14) pipe Band Drain hose Fig.
Page 173 Serv i ce M a nu a l 9. Hang the Indoor Unit Put the bound pipes in the wall pipe and then pass them through the wall hole. Hang the indoor unit on the wall-mounting frame. Stuff the gap between the pipes and the wall hole with sealing gum. Indoor Outdoor Wall pipe...
Page 174 Serv i ce M a nu a l 8.6 Installation of Outdoor Unit 1. Fix the Support of Outdoor Unit (Select it according to the actual installation situation) Select installation location according to the house structure. Fix the support of outdoor unit on the selected location with expansion screws. NOTICE: ●...
Page 175 Serv i ce M a nu a l NOTICE: As for the shape of drainage joint, please refer to the current product. Do not install the drainage joint in the severe cold area. Otherwise, it will be frosted and then cause malfunction. 3. Fix Outdoor Unit Place the outdoor unit on the support.
Page 176 Serv i ce M a nu a l Liquid pipe Liquid gas pipe valve gas valve Remove the screw cap of valve and aim the pipe joint at the bellmouth of Liquid pipe Pipe joint pipe. (As shown in Fig.22) Liquid gas pipe valve...
Page 177 Serv i ce M a nu a l 5. Connect Outdoor Electric Wire Remove the wire clip; connect the power connection wire and signal control wire (only for cooling and heating unit) to the wiring terminal according to the color; fix them with screws. (As shown in Fig.23) N(1) L(3) yellow-...
Page 178 Serv i ce M a nu a l 6. Neaten the Pipes The pipes should be placed along the wall, bent reasonably and hidden possibly. Min. semidiameter of bending the pipe is 10cm. If the outdoor unit is higher than the wall hole, you must set a U-shaped Wall curve in the pipe before pipe goes...
Page 179 Serv i ce M a nu a l ● The water outlet cant be placed in water in order to drain smoothly. (As shown in Fig.27) The water outlet can't be placed in water Fig.27...
Page 180 Serv i ce M a nu a l 8.7 Vacuum Pumping and Leak Detection 1. Use Vacuum Pump Remove the valve caps on the liquid valve and gas valve and the nut of refrigerant charging vent. Connect the charging hose of piezometer to the refrigerant charging vent of gas valve and then connect the other charging hose to the vacuum pump.
Page 181 Serv i ce M a nu a l 2. Leakage Detection With leakage detector: Check if there is leakage with leakage detector. With soap water: If leakage detector is not available, please use soap water for leakage detection. Apply soap water at the suspected position and keep the soap water for more than 3min.
Page 182 Serv i ce M a nu a l 8.8 Check after Installation and Test Operation 1. Check after Installation Check according to the following requirement after finishing installation. Items to be checked Possible malfunction The unit may drop, shake or emit Has the unit been installed firmly? noise.
Page 183 Serv i ce M a nu a l 2. Test Operation Preparation of test operation ● The client approves the air conditioner installation. ● Specify the important notes for air conditioner to the client. Method of test operation ● Put through the power, press ON/OFF button on the remote controller to start operation.
Page 184 Serv i ce M a nu a l 9. Maintenance 9.1 Error Code List Error Malfunction name Possible causes code Communication error between IDU with Please refer to "Communication Error". IPM protection Please refer to "IPM Protection". 1. Motor or motor wire is damaged; Outdoor fan error 2.
Page 185 Serv i ce M a nu a l Error Malfunction name Possible causes code 1. Abnormal power supply voltage; 2. Condenser or evaporator is dirty or clogged; 3. Inlet and outlet air of indoor unit or outdoor unit is not smooth; 4.
Page 186 Serv i ce M a nu a l Error Malfunction name Possible causes code Cooling: 1. The condenser of the outdoor unit is dirty or clogged, leading to poor heat exchange; 2. Insufficient space or obstacles at the air inlet and outlet of the outdoor unit cause poor air circulation;...
Page 187 Serv i ce M a nu a l Error Malfunction name Possible causes code 1. Temperature sensor is damaged (refer to Open/short circuit of attachment "Table 2"); temperature sensor 2. Temperature sensor is not connected or in poor of indoor evaporator contact.
Page 188 Serv i ce M a nu a l Error Malfunction name Possible causes code 1. Unstable power supply voltage; 2. Power supply voltage is too low; 3. Condenser or evaporator is dirty or clogged; 4. Inlet and outlet air of IDU or ODU is not smooth; Overcurrent 5.
Page 189 Serv i ce M a nu a l Error Malfunction name Possible causes code 1. Temperature sensor is not connected or is damaged; (refer to attachment "Table 2"); Open/short circuit of temperature sensor 2. Temperature sensor wire is damaged, or is short- of liquid valve circuited to the copper tube or outer case;...
Page 190 Serv i ce M a nu a l Error Malfunction name Possible causes code Refrigerant recovery Recovery of refrigerant. The mode is conducted mode during maintenance. Please refer to "High temperature, overload, high System error power, system error". Compressor 1. Main board of ODU is damaged; demagnetization 2.
Page 191 Serv i ce M a nu a l Error Malfunction name Possible causes code 1. Air inlet/outlet of ODU is dirty and clogged; High-temperature 2. IPM screw of main board is not well installed or protection of module the radiator is not well installed, or the main board is damaged.
Page 192 Serv i ce M a nu a l Error Malfunction name Possible causes code 1. Power voltage is below AC175V; 2. Loose or broken wires at the four-way valve 4-way valve terminal; switchover error 3. Four-way valve is damaged, please replace the four-way valve.
Page 193 Serv i ce M a nu a l 9.2 Procedure of Troubleshooting : Communication Error Between IDU with ODU Communication Error between IDU with ODU Cooling/dehumidification: Compressor and outdoor fan stop running; Heating: All loads stop running; Principle: The indoor and outdoor units cannot establish communication or the established communication data is abnormal.
Page 194 Serv i ce M a nu a l If it replaces the ODU to communicate with the IDU, and the E6 error occurs, it means the main board of IDU is abnormal; If no E6 error occurs, it means that the connection line between the indoor unit and the outdoor unit is abnormal.
Page 195 Serv i ce M a nu a l : IPM Protection Error description When the compressor is running, detect the current flowing through the compressor control module (IPM). If the current exceeds the set value (the set value varies for different models), an H5 IPM current protection error is reported.
Page 196 Serv i ce M a nu a l Troubleshooting Energize and turn on the unit Does the unit only Check the power cord report an error after running for and compressor wire a period of time? heck the power supply Check if the connection Adjust the wire connection voltage of unit...
Page 197 Serv i ce M a nu a l : Outdoor Fan Error Outdoor Fan Error Cooling/dehumidification: All loads stop running except the indoor fan; Heating: All loads stop running; Principle: The fan reports a major error every 6 minor errors (such as fan out of step, fan blockage, fan overload, etc.). The unit stops operation and then it will resume operation after 3min.
Page 198 Serv i ce M a nu a l Cooling/Dehumidification: All loads stop running except the indoor fan. Heat: All loads stop running. The display shows L3 (for dual outdoor fans, L3 indicates fan 1; LA indicates fan 2) Are the outdoor condenser, Clean the dirt or dust from air inlet, and air outlet blocked by dirt the outdoor condenser, air...
Page 199 Serv i ce M a nu a l : Operating Error of Indoor Unit Motor Possible causes: Motor terminal or feedback terminal is not properly connected; Motor is damaged; Main board of IDU is damaged. DC motor The error code displays "H6" Under power-off status, please manually rotate the fan blade with your hand Adjust the assembly of motor Check if the fan blade...
Page 200 Serv i ce M a nu a l PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether...
Page 201 Serv i ce M a nu a l : PFC Protection Error description Cooling/dehumidification: Compressor and outdoor fan stop running; Heating: All loads stop running; Principle: The main program detects that the instantaneous input current of the PFC circuit is too high. Possible causes The main board of the outdoor unit is damaged;...
Page 202 Serv i ce M a nu a l PFC protection (display shows HC) Power grid quality is poor; AC input voltage fluctuates; Measure the voltage and frequency between the blue and brown wires on the terminal board with a multimeter Is the voltage value Replace with a larger capacity fluctuating? Is the power...
Page 203 Serv i ce M a nu a l : Compressor Out of Step Error description When the compressor is running, the difference between the actual operating speed and the set speed is detected to exceed the set value (the set value is different for different models), and the H7 compressor out-of-step protection is reported.
Page 204 Serv i ce M a nu a l Energize and turn on the unit Check the power Does the unit only cord and compressor report an error after running for wire a period of time? Check if the connection Adjust the wire connection Check the power is reliable and correct to correct status...
Page 205 Serv i ce M a nu a l : Refrigerant Lack Protection, Refrigerant Circulation Stop Protection Error description This error code will be displayed when the main board of the indoor unit detects that the temperature difference between the inner tube and the inner ring is too small for a period of time. Possible causes The connecting pipe of the IDU and ODU is damaged or the connection is aging and loose, resulting in the leakage of refrigerant;...
Page 206 Serv i ce M a nu a l F0 error code is displayed Turn off the unit and disconnect the power, wait for a few minutes and then reconnect the power to restart the unit, check if the error is cleared. Check if there is any damage to the connecting pipe of indoor and outdoor Repair the pipe and add...
Page 207 Serv i ce M a nu a l : High DC Bus Voltage Error description When the compressor is running, the DC bus voltage of the main board is detected, if the voltage value is higher than a certain value (such as 425- 445V, the value is different due to different models), and it will report the high DC bus voltage protection.
Page 208 Serv i ce M a nu a l : Low DC Bus Voltage Error description When the compressor is running, the DC bus voltage is detected, if the voltage value is lower than a certain value (such as 120V~170V, different models), it will report low DC bus voltage protection.
Page 209 Serv i ce M a nu a l : High-Temperature Protection Error description If the main board detects that the temperature of the evaporator of indoor unit or the condenser of outdoor unit is too high, it will report an E8 high- temperature protection.
Page 210 Serv i ce M a nu a l Overload and high temperature protection Is it in Cooling mode? Is the indoor unit Clean the outdoor Clean the indoor unit Is the condenser dirty or clogged? evaporator or filter dirty or unit condenser evaporator and filter clogged?
Page 211 Serv i ce M a nu a l : Jumper Cap Error Error description If the jumper cap cannot be detected when the main board is powered on, the jumper cap error will be reported. Principle: The jumper cap determines some of the operating parameters of the model, and if the jumper cap is not detected, the air conditioner cannot run.
Page 212 Serv i ce M a nu a l The display shows "C4" or "C5" Check if the jumper cap is installed on the main board Install the jumper cap of controller Check if the error is eliminated Check if there is poor Reinsert the jumper cap well contact of the jumper cap Check if the error...
Page 213 Serv i ce M a nu a l : Temperature Sensor Error Error description Cooling/dehumidification: All loads stop operation; Heating: All loads stop running. Possible causes The temperature sensor is damaged; The temperature sensor is not connected or has poor contact. Troubleshooting Check whether the connection between the temperature sensor and the main board is normal;...
Page 214 Serv i ce M a nu a l : Indoor Unit Zero-crossing Signal Error Error description After the unit is turned on, if the main board of the indoor unit fails to detect the normal zero-crossing signal continuously within a certain period of time, the zero-crossing error will be reported. Principle: The main board fails to detect the zero-crossing signal normally, and cannot meet the normal operation requirements of the AC motor.
Page 215 Serv i ce M a nu a l : Overcurrent Protection Error description During the operation of the air conditioner, the AC input current of the whole unit is detected, and when the detected current exceeds the set value (the set value is different for different models), the E5 overcurrent protection of the whole unit will be reported.
Page 216 Serv i ce M a nu a l Start Check if the power Adjust the voltage to stable supply voltage is not power supply stable Check if the power Adjust the power supply voltage supply voltage is too low to be within the range of nominal voltage±10% on the nameplate Check if the indoor or Clean the heat exchanger...
Page 217 Serv i ce M a nu a l : Overload Protection of Compressor Error description When the main board detects that the compressor overload protection switch is disconnected, it will report the compressor overload protection. Principle: The overload protection switch is in a short-circuit state at both ends under normal circumstances, and it will be disconnected when the temperature at the top of the compressor is too high.
Page 218 Serv i ce M a nu a l Check the connection wire of overload protector If the connection between the Reconnect the wire main board and overload protector of compressor is reliable? Check if the impedance Replace the overload between two terminals of overload protector protector is≤1 ? Check if the connection wire of...
Page 219 Serv i ce M a nu a l : Refrigerant Leak Alarm Error description If the refrigerant sensor detects that the refrigerant concentration exceeds 10%LFL, the refrigerant leak alarm will be triggered, and the indoor unit will display the EA code, the buzzer will beep, the fan will run, and the outdoor unit will stop.
Page 220 Serv i ce M a nu a l It displays EA code Evaporator pipe is Replace the evaporator It displays EA code damaged There is Remove ethanol and ethanol and other It displays EA code other volatile gases volatile gases There is Turn off the high- high-power equipment...
Page 221 Serv i ce M a nu a l : Refrigerant Sensor Error Error description If there is internal error of the refrigerant sensor module or the communication between the refrigerant sensor and the main board is abnormal, the refrigerant sensor alarm will be triggered, and the indoor unit will display the FE code, buzzer will beep, the fan will operate, and the outdoor unit will stop (only applicable to some models).
Page 222 Serv i ce M a nu a l It displays FE error code The wire connection between Replace the refrigerant sensor and main connection wire controller is abnormal It displays FE error code Replace the refrigerant sensor It displays FE error code Replace the main control board of...
Page 223 Serv i ce M a nu a l : High Pressure Protection of System Error description When the main board detects that the system high pressure protection switch is disconnected, it will report system high pressure protection. Principle: The system high pressure protection switch is in a short-circuit state at both ends under normal circumstances, and it will be disconnected when the system pressure exceeds the limit value.
Page 224 Serv i ce M a nu a l Measure the connection wire of high pressure protection switch Check if the connection between the main board Reconnect the wire or replace and high pressure protection the connection wire switch is reliable? Measure to check if the impedance between Replace the high pressure...
Page 225 Serv i ce M a nu a l : Low Pressure Protection/System Low Pressure Protection/Compressor Low Pressure Protection Error description Cooling/dehumidification: Compressor and outdoor fan stop running; Heating: All loads stop running; Principle: The low pressure protection switch is normal closed. When the compessor pressure is too low, the switch will open.
Page 226 Serv i ce M a nu a l Low pressure/low system pressure protection/ compressor low pressure protection (display shows E3) Is the connection between Connect the low-pressure protector the low-pressure protector correctly to the main board port (LPP) and the main board normal? Unplug the LPP terminal from the main board, then measure the...
Page 227 Serv i ce M a nu a l : Mode Conflict Error description If an outdoor unit is connected to multiple indoor units, and the operation modes of each indoor unit do not match, an E7 mode conflict error will be reported. Possible causes In multiple indoor units, some indoor units have the heating mode on, and some of the indoor units have the cooling mode, dry mode or air supply mode...
Page 228 Serv i ce M a nu a l : Read EEPROM Error Error description Cooling/dehumidification: Compressor and outdoor fan stop running; Heating: All loads stop running; Principle: The memory chip or memory chip circuit fails, and it's unable to read the data from the memory chip. Possible causes The main board is damaged;...
Page 229 Serv i ce M a nu a l : Startup Failure Error description If the compressor cannot be started successfully within a certain period of time, it will report the Lc compressor startup failure. Possible causes The power supply voltage is abnormal; The system pipeline is blocked and the valve is not opened;...
Page 230 Serv i ce M a nu a l : Phase-loss Protection of Compressor Error description During the operation of the air conditioner, the three-phase current of the compressor U, V and W is detected, and when a certain phase current loss is detected, the Ld compressor phase-loss protection will be reported.
Page 231 Serv i ce M a nu a l : Undefined Outdoor Unit Error Error description When the main board detects an error that causes the outdoor unit to shut down, this error code is displayed, usually accompanied by other error codes that cause the shutdown. Possible causes Compressor startup failure;...
Page 232 Serv i ce M a nu a l : Circuit Error of Module Temperature Sensor Error description Cooling/dehumidification: Compressor and outdoor fan stop running; Heating: All loads stop running; Principle: The main program detects that the temperature of the compressor IPM Module is abnormal,usually the compressor IPM Module or the detection circuit is damaged.
Page 233 Serv i ce M a nu a l : High-temperature Protection of Module Error description Cooling/dehumidification: Compressor and outdoor fan stop running; Heating: All loads stop running; Principle: The main program detects that the module temperature is too high and exceeds the protection value. Possible causes The outdoor fan is blocked by foreign objects, resulting in poor heat dissipation;...
Page 234 Serv i ce M a nu a l Module overheat protection (display shows P8) Is the air inlet/outlet After cutting off the power and of the outdoor unit blocked cleaning the dirt, restart the unit by dirt or dust? Is the condenser Cut off the power and clean of the outdoor unit blocked by dirt or dust? the outdoor unit before restarting...
Page 235 Serv i ce M a nu a l : Capacitor Charging Error Error description After energizing the unit, the voltage of the DC bus of the main board of outdoor unit has not reached 100V. Possible causes The AC power supply voltage is too low; The reactor wiring is incorrect;...
Page 236 Serv i ce M a nu a l : RF Module Error Error description Cooling: The compressor and the outdoor fan stop running; Heating: The compressor and the outdoor fan stop running immediately, and the indoor fan stops running after 1 minute. Possible causes The connection between the RF module and the main board is abnormal;...
Page 237 Serv i ce M a nu a l : Micro-switch Error Error description Cooling/dehumidification: All loads stop running; Heating: All loads stop running. Possible causes The connection between the sliding door motor and the main board is abnormal; The sliding door does not run smoothly; The pushing rods of left and right sliding door do not run consistently.
Page 238 Serv i ce M a nu a l Sliding door error detection Check if the Reconnect the motor of sliding connection between the motor door to the main board of sliding door and the main board is normal 1. First, check if the installation of pushing rod of air louver is normal.
Page 239 Serv i ce M a nu a l : Communication Error Between Indoor Unit and Detective Board Error description When the main board of indoor unit detects abnormal communication with the WIFI module, this error code will appear, but the error will not be displayed actively. Possible causes The communication circuit of the main board of indoor unit or WIFI module is damaged;...
Page 240 Serv i ce M a nu a l Networking Error Error description The APP cannot control the indoor unit normally/cannot connect to the network. Possible causes The APP version is not the latest; The APP is not compatible with the mobile phone system; The home network frequency band is not supported (not 2.4GHz);...
Page 241 Serv i ce M a nu a l Network error troubleshooting Check APP for updates Turn off the unit and disconnect the power, wait a few minutes before reconnecting the power Perform WIFI reset by using remote Is the network controller when the unit is off configured? Wait...
Page 242 Serv i ce M a nu a l 9.3 Checkup 1. Check the thermal resistor resistance (1) Tool preparation Multimeter. (2) Find the model of thermal resistor Check the label on the outer case of the thermal resistor to find the model number. Refer to the resistance table of thermal resistor in the appendix to find the resistance range corresponding to the model.
Page 243 Serv i ce M a nu a l 2. Check the electronic expansion valve Check the connection Check whether the connector of the electronic expansion valve (EV) is properly connected to the PCB board. — Make sure that the connector is firmly plugged in and there is no looseness or poor contact.
Page 244 Serv i ce M a nu a l 3. Check the compressor Disconnect the power supply Disconnect the compressor power cord from the PCB board of outdoor unit. — Make sure the power supply is completely disconnected to avoid the risk of electric shock.
Page 245 Serv i ce M a nu a l 4. Check the 4-way valve coil Measure the resistance between the two leads of the coil. If the resistance is between 500~2500Ω, the coil is normal. If the resistance is infinite, the coil is abnormal. ● The resistance of DC24V coil is about 550Ω;...
Page 246 Serv i ce M a nu a l 9.4 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Troubleshooting ● Confirm whether it's due to power failure. No power supply, or poor — If yes, wait for power recovery. connection for power plug —...
Page 247 Serv i ce M a nu a l 2. Poor Cooling (Heating) for Air Conditioner Possible Causes Troubleshooting Set temperature is improper ● Adjust the set temperature Rotation speed of the IDU ● Set the fan speed at high or medium fan motor is set too low Filter of indoor unit is blocked ●...
Page 248 Serv i ce M a nu a l 3. Horizontal Louver Can't Swing Possible Causes Troubleshooting ● Connect wires according to wiring diagram to Wrong wire connection, or make sure all wiring terminals are connected poor connection firmly Stepping motor is damaged ● Repair or replace stepping motor Main board is damaged ●...
Page 249 Serv i ce M a nu a l 5. Air Conditioner is Leaking Possible Causes Troubleshooting ● Eliminate the foreign objects inside the drain Drain pipe is blocked pipe Drain pipe is broken ● Replace drain pipe Wrapping is not tight ● Wrap it again and bundle it tightly 6. Compressor Can't Operate Possible Causes Troubleshooting...
Page 250 Serv i ce M a nu a l 7. Abnormal Sound and Vibration Possible Causes Troubleshooting When turn on or turn off the unit, the panel and other ● Normal phenomenon. Abnormal sound will parts will expand and there’s disappear after a few minutes. abnormal sound When turn on or turn off the unit, there’s abnormal sound...
Page 251 Serv i ce M a nu a l 10. Removal Procedure 10.1 Removal Procedure of Indoor Unit Step Procedure Before disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. Remove guide louver Push out the plug pin on guide louver, bend the guide louver with hand and then separate the guide louver from the crank shaft of step motor to remove it.
Page 252 Serv i ce M a nu a l Step Procedure Display Screws Panel Panel rotation Remove panel Separate the panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the panel.
Page 253 Serv i ce M a nu a l Step Procedure Left Side Plate Right Side Plate Screws Remove left and right side plate After removing the left and right side plate screws, lift the left and right sides up to remove them.
Page 254 Serv i ce M a nu a l Step Procedure Remove connecting rod sub-assy Remove connecting rod sub-assy with stepping motor from clasps which are under seal cover. Connecting Rod Sub-assy Left Side Plate Remove connecting rod sub-assy Remove the screws fixing front case. Screw Front case sub-assy...
Page 255 Serv i ce M a nu a l Step Procedure Indoor tube Grounding temperature Electric box screw sensor assy Wiring terminal 1. Cut off the wire binder and pull out the indoor of motor tube temperature sensor. Main board 2. Screw off one grounding screw. 3.
Page 256 Serv i ce M a nu a l Step Procedure Remove evaporator combination assy Remove 2 screws fixing evaporator combination assy. Screws Connection pipe clamp At the back of the unit, Loosen the clasp of the connecting pipe clamp and then remove the connection pipe clamp.
Page 257 Serv i ce M a nu a l Step Procedure Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screws Cross flow fan Screw Motor Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor.
Page 258 Serv i ce M a nu a l 10.2 Removal Procedure of Outdoor Unit GWH09AVCXB-K6DNA1B/O Caution: discharge the refrigerant completely GWH09AVCXB-K6DNA1C/O before removal. Step Procedure Before disassembly Handle Remove big handle and valve cover Valve cover Remove the screws fixing big handle, valve cover and then remove them.
Page 259 Serv i ce M a nu a l Step Procedure Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy Right side plate assy Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal...
Page 260 Serv i ce M a nu a l Step Procedure Motor support Remove motor support and motor Motor Remove the screws fixing the motor support and lift the motor support to remove it. Remove the screws fixing the motor and then remove the motor.
Page 261 Serv i ce M a nu a l Step Procedure Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Liquid valve Note: Discharge the refrigerant completely befor...
Page 262 Serv i ce M a nu a l GWH12AVCXD-K6DNA1A/O Caution: discharge the refrigerant completely GWH12AVCXD-K6DNA1F/O before removal. Step Procedure Before disassembly Handle Remove handle and valve cover Remove the screws fixing handle, valve cover and then remove them. Valve cover Top cover Remove top cover Remove the screws fixing top panel and then...
Page 263 Serv i ce M a nu a l Step Procedure Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy Right side plate assy Remove right side plate assy Unscrew the ground screws, remove the ground wires, unscrew the screws fixing...
Page 264 Serv i ce M a nu a l Step Procedure Electric box assy Remove electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard are removed and the electrical box assy are removed.
Page 265 Serv i ce M a nu a l Step Procedure Remove 4-way valve assy Unsolder the welding joints connecting capillary, and then remove it. Unsolder the welding joints connecting the 4-way valve 4-way valve assy with capillary sub-assy, compressor and condenser; remove the 4-way valve.Cooling only unit removes Discharge Tube and Inhalation Tube.
Page 266 Serv i ce M a nu a l GWH09AVDXE-K6DNA1A/O Caution: discharge the refrigerant completely GWH12AVDXE-K6DNA1A/O before removal. GWH18AVDXE-K6DNA1A/O Step Procedure Before disassembly Handle Remove handle and valve cover Remove the screws fixing handle, valve cover Valve cover and then remove them. Top cover Remove top cover Remove the screws fixing top panel and then...
Page 267 Serv i ce M a nu a l Step Procedure Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy Right side plate assy Remove right side plate assy Unscrew the ground screws, remove the ground wires, unscrew the screws fixing...
Page 268 Serv i ce M a nu a l Step Procedure Motor support Remove motor support and motor Motor Remove the screws fixing the motor support and lift the motor support to remove it. Remove the screws fixing the motor and then remove the motor.
Page 269 Serv i ce M a nu a l Step Procedure Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Liquid valve Note: Discharge the refrigerant completely befor...
Page 270 Serv i ce M a nu a l GWH18AVDXF-K6DNA1A/O Caution: discharge the refrigerant completely GWH18AVDXF-S6DNA1D/O before removal. GWH24AVEXF-K6DNA1A/O Step Procedure Before disassembly Handle Remove handle and valve cover Remove the screws fixing handle, valve cover Valve cover and then remove them. Top cover Remove top cover Remove the screws fixing top panel and then...
Page 271 Serv i ce M a nu a l Step Procedure Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy Right side plate assy Remove right side plate assy Unscrew the ground screws, remove the ground wires, unscrew the screws fixing...
Page 272 Serv i ce M a nu a l Step Procedure Motor support Remove motor support and motor Motor Remove the screws fixing the motor support and lift the motor support to remove it. Remove the screws fixing the motor and then remove the motor.
Page 273 Serv i ce M a nu a l Step Procedure Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Liquid valve Note: Discharge the refrigerant completely befor...
Page 274 Serv i ce M a nu a l GWH24AVEXH-K6DNA1B/O Caution: discharge the refrigerant completely before removal. Step Procedure Before disassembly Handle Remove handle and valve cover Remove the screws fixing handle, valve cover Valve cover and then remove them. Top cover Remove top cover Remove the screws fixing top panel and then remove the top panel.
Page 275 Serv i ce M a nu a l Step Procedure Remove front panel assy Remove connection screws connecting the front panel assy with the chassis and the motor support, and then remove the front panel assy. Front panel assy Right side plate assy Remove right side plate assy Unscrew the ground screws, remove the ground wires, unscrew the screws fixing...
Page 276 Serv i ce M a nu a l Step Procedure Motor support Remove motor support and motor Motor Remove the screws fixing the motor support and lift the motor support to remove it. Remove the screws fixing the motor and then remove the motor.
Page 277 Serv i ce M a nu a l Step Procedure Remove gas valve and liquid valve Remove the valve support bolck, remove the screws fixing the gas valve and the liquid valve,unsolder the welding joint connecting the gas valve and the liquid valve, remove them. Liquid valve Note: Discharge the refrigerant completely befor...
Page 278 Serv i ce M a nu a l Appendix Appendix 1 Reference Sheet of Celsius and Fahrenheit Set temperature Fahrenheit display temperature Fahrenheit Celsius (°F) (°F) (°C) 60.8 62/63 62.6 64/65 64.4 66/67 66.2 69/70 69.8 71/72 71.6 73/74 73.4 75/76 75.2 78/79...
Page 279 Serv i ce M a nu a l Ambient temperature Fahrenheit display temperature Fahrenheit Celsius (°F) (°F) (°C) 32/33 34/35 33.8 35.6 37/38 37.4 39/40 39.2 41/42 43/44 42.8 44.6 46/47 46.4 48/49 48.2 50/51 52/53 51.8 53.6 55/56 55.4 57/58 57.2 59/60...
Page 280 Serv i ce M a nu a l Fahrenheit display temperature Fahrenheit Celsius (°F) (°F) (°C) 68/69 70/71 69.8 71.6 73/74 73.4 75/76 75.2 77/78 79/80 78.8 80.6 82/83 82.4 84/85 84.2 86/87 88/89 87.8 89.6 91/92 91.4 93/94 93.2 95/96 97/98 96.8...
Page 281 Serv i ce M a nu a l Appendix 2 Configuration of Connection Pipe Standard length of connection pipe (More details please refer to the specifications.) Min length of connection pipe for the unit with standard connection pipe of 5m, there is no limitation for themin length of connection pipe. For the unit with standard connection pipe of 7.5m and 8m, the min length of connection pipe is 3m.
Page 282 Serv i ce M a nu a l Appendix 3 Pipe expanding method NOTE: Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Pipe A: Cut the pip Pipe cutter ● Confirm the pipe length according to the Leaning Uneven...
Page 283 Serv i ce M a nu a l E: Expand the port ● Expand the port with expander. Hard mold Expander NOTE: Pipe "A" is different according to the diameter, please refer to the sheet below: A (mm) Outer diameter(mm) Ф6 - 6.35 (1/4") Ф9 - Ф9.52 (3/8") Ф12 - 12.70 (1/2") Ф16 - 15.88 (5/8")
Page 284 Serv i ce M a nu a l Appendix 4 List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp (°C) Resistance (kΩ) Temp (°C) Resistance (kΩ) 138.10 18.75 128.60 17.14 115.00 15.68 102.90 14.36 92.22 13.16 82.75 12.07 74.35 11.09 66.88 10.20 60.23...
Page 285 Serv i ce M a nu a l Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp (°C) Resistance (kΩ) Temp (°C) Resistance (kΩ) 181.40 4.95 145.00 4.14 110.30 3.48 84.61 2.94 65.37 2.50 50.87 2.13 39.87 1.82 31.47 1.56 25.01 1.35 20.00 1.16 16.10 1.01 13.04 0.88 10.62...
Page 286 Serv i ce M a nu a l Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp (°C) Resistance (kΩ) Temp (°C) Resistance (kΩ) 911.40 17.65 660.80 14.62 486.50 12.17 362.90 10.18 8.56 7.22 6.13 125.10 5.22 4.44 77.35 3.84 61.48 3.32 49.19...
Page 287 Serv i ce M a nu a l Appendix 5 After-sales debugger operation Instruction 1. Applicable models GT2A3Ac/d Debugger Model Specific types Applicable Models Inverter split unit Applicable (IDU power supply) Split unit Inverter split unit Applicable (ODU power supply) Applicable to T-fresh model and new Floor standing unit Inverter models...
Page 288 Serv i ce M a nu a l USB interface of debugger USB interface for connecting debugger USB interface for connecting computer...
Page 289 Serv i ce M a nu a l 3. Precautions ● Be sure to read before use All wiring connection should be completed under power off status. Do not connect the debugger when the air conditioner is energized to avoid electric shock.
Page 290 Serv i ce M a nu a l 4. Function Introduction ● Data monitor function This function is mainly used to detect the operating parameters of the whole unit. The display interface is as follows: ● Run mode: Cool ● Compressor frequency: ●...
Page 291 Serv i ce M a nu a l 5. Wiring Instruction ● Power cord connection instruction of debugger After-sales debugger brown AC-L L (Live Wire) black COM (Communication wire) blue N (Neutral Wire) Power cord plug Terminal board for connecting IDU/ODU NOTE: 1.
Page 292 Serv i ce M a nu a l Power Supply blue black Indoor Unit Outdoor Unit brown brown AC-L black Debugger blue NOTE: 1. Before connecting or disconnecting the wires to the air conditioner, pls cut off the power of the air conditioner and make sure that the residual voltage of the air conditioner is discharged.
Page 293 Serv i ce M a nu a l When the debugger is connected to the IDU terminal board, the COM communication wire (black) of IDU must be disconnected. If the debugger is connected to the ODU terminal board, the communication wire of the IDU must also be disconnected.
Page 294 Serv i ce M a nu a l Power Supply blue black Indoor Unit Outdoor Unit brown brown AC-L black Debugger blue The power cord of the debugger can be connected to the terminal board of the IDU or the ODU. Note that the communication wire (black wire) of the ODU must be disconnected from the terminal board.
Page 295 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice. JF00305350...

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Gree AIRY Series Service Manual

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