GREE ELECTRIC GWH07AGA-K6DNA1A/O Service Manual
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GREE ELECTRIC GWH07AGA-K6DNA1A/O Service Manual

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GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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Summary of Contents for GREE ELECTRIC GWH07AGA-K6DNA1A/O

  • Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...

  • Page 2: Table Of Contents

    Table of Contents Service Manual Part I : Technical Information ........1 1. Summary ................. 1 2. Specifications ............... 3 2.1 Specification Sheet ....................3 2.2 Capacity Variation Ratio According to Temperature .........25 2.3 Cooling and Heating Data Sheet in Rated Frequency .......25 3.
  • Page 3 Service Manual 8.5 Installation of Indoor Unit ..................69 8.6 Installation of Outdoor Unit ................71 8.7 Vacuum Pumping and Leak Detection ............72 8.8 Check after Installation and Test Operation ..........73 9. Maintenance ..............74 9.1 Error Code List ......................74 9.2 Procedure of Troubleshooting ................78 9.3 Troubleshooting for Normal Malfunction ............92...

  • Page 4: Part I : Technical Information

    1. Summary Service Manual Indoor Unit A1 panel A2 panel A3 panel A4 panel Outdoor Unit: GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O GWH09ATCXB-K6DNA1A/O GWH12ATBXB-K6DNA1D/O GWH12ATCXB-K6DNA1A/O GWH12ATCXB-K6DNA1D/O GWH18ATDXB-K6DNA1A/O GWH07AGA-K6DNA1A/O GWH18ATDXD-K6DNA1A/O GWH24ATDXE-K6DNA1A/O Technical Information...
  • Page 5 Product code Indoor model Outdoor model code code Controller CB574002000 CB574N02000 CB385W01100 GWH07ATAXA-K6DNA1B CB574002002 GWH07ATAXA-K6DNA1B/I CB574N02000 CB385W01102 YAP1F7 (WiFi) CB574002003 CB574N02003 GWH07AGA-K6DNA1A/O CB595002200 CB595N02200 CB385W01100 GWH07ATAXA-K6DNA4B GWH07ATAXA-K6DNA4B/I CB595002201 CB595N02201 YAY1F1 CB574000600 CB574N00600 GWH09ATAXB-K6DNA1B GWH09ATAXB-K6DNA1B/I YAP1F7 CB574000601 CB574N00601 (WiFi) GWH09AGAXB-K6DNA1B/O CB385W09900...

  • Page 6: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet GWH07ATAXA-K6DNA1B Model GWH07ATAXA-K6DNA4B CB574002000/CB574002002/CB574002003 Product Code CB595002200/CB595002201 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2200 Heating Capacity 2400 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input 1300...
  • Page 7 Service Manual Outdoor Unit Model GWH07AGA-K6DNA1A/O Outdoor Unit Product Code CB385W01100/CB385W01102 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-N075zC170 Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range °C...
  • Page 8 Service Manual GWH09ATAXB-K6DNA1B Model GWH09ATAXB-K6DNA4B CB574000600/CB574000601 Product Code CB595002000/CB595002001 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2500 Heating Capacity 2800 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input 1500 Rated Cooling Current Rated Heating Current...
  • Page 9 Service Manual Outdoor Unit Model GWH09AGAXB-K6DNA1B/O Outdoor Unit Product Code CB385W09900 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 2.56 Compressor Power Input 756.6 Compressor Overload Protector Throttling Method Capillary Set Temperature Range...
  • Page 10 Service Manual Model GWH09ATBXB-K6DNA1B Product Code CB574002100 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2700 Heating Capacity 2800 Cooling Power Input Heating Power Input Cooling Power Current 3.45 Heating Power Current 3.19 Rated Input 1500 Rated Cooling Current Rated Heating Current...
  • Page 11 Service Manual Outdoor Unit Model GWH09AGBXB-K6DNA1A/O Outdoor Unit Product Code CB385W17100 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 2.56 Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range...
  • Page 12 Service Manual Model GWH09ATCXB-K6DNA1A Product Code CB574000500 CB574000501 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 Power Current Heating Power Current Rated Input 1400 Rated Cooling Current Rated Heating Current...
  • Page 13 Service Manual Outdoor Unit Model GWH09ATCXB-K6DNA1A/O Outdoor Unit Product Code CB574W00500 CB574W00501 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA 2.56 Compressor Power Input 756.6 Compressor Overload Protector Throttling Method Capillary...
  • Page 14 Service Manual GWH12ATBXB-K6DNA1D Model GWH12ATBXB-K6DNA4D CB574000800/CB574000801 Product Code CB595002300 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3200 Heating Capacity 3400 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input 1500 Rated Cooling Current Rated Heating Current...
  • Page 15 Service Manual Outdoor Unit Model GWH12ATBXB-K6DNA1D/O Outdoor Unit Product Code CB574W00800 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-N088zC170 Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range °C...
  • Page 16 Service Manual Model GWH12ATCXB-K6DNA1A Product Code CB574000700 CB574000701 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3510 Heating Capacity 3810 Cooling Power Input Heating Power Input Cooling Power Current Heating Power Current Rated Input 1800 Rated Cooling Current Rated Heating Current...
  • Page 17 Service Manual Outdoor Unit Model GWH12ATCXB-K6DNA1A/O Outdoor Unit Product Code CB574W00700 CB574W00701 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model FTz-AN108ACBD Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Electron expansion valve Set Temperature Range...
  • Page 18 Service Manual GWH12ATCXB-K6DNA1D Model GWH12ATCXB-K6DNA4D CB574001800 Product Code CB595001900 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3200 Heating Capacity 3400 Cooling Power Input Heating Power Input Cooling Power Current 4.14 Heating Power Current 3.87 Rated Input 1500...
  • Page 19 Service Manual Outdoor Unit Model GWH12ATCXB-K6DNA1D/O Outdoor Unit Product Code CB574W01800 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-N088zC170 Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range °C...
  • Page 20 Service Manual GWH18ATDXB-K6DNA1A Model GWH18ATDXB-K6DNA4A CB574002800/CB574002801 Product Code CB595002100 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 4600 Heating Capacity 5200 Cooling Power Input 1353 Heating Power Input 1334 Cooling Power Current Heating Power Current Rated Input 1900 Rated Cooling Current...
  • Page 21 Service Manual Outdoor Unit Model GWH18ATDXB-K6DNA1A/O Outdoor Unit Product Code CB574W02800 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model FTz-AN108ACBD Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range °C...
  • Page 22 Service Manual Model GWH18ATDXD-K6DNA1A Product Code CB574002700 CB574002701 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 5300 Heating Capacity 5600 Cooling Power Input 1501 Heating Power Input 1393 Cooling Power Current Heating Power Current Rated Input 2350 Rated Cooling Current...
  • Page 23 Service Manual Outdoor Unit Model GWH18ATDXD-K6DNA1A/O Outdoor Unit Product Code CB574W02700 CB574W02701 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-A120zH170A Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1096 Compressor Overload Protector HPC115/95U1/KSD115°C Throttling Method Electron expansion valve...
  • Page 24 Service Manual GWH24ATDXE-K6DNA1A GWH24ATDXE-K6DNA1A GWH24ATDXE-K6DNA2A Model GWH24ATDXE-K6DNA4A GWH24ATDXE-K6DNA3A GWH24ATDXE-K6DNA4A CB574002901 CB574002900/CB574002902 CB585000100 Product Code CB595000701 CB590001100 CB595000700 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 6200 Heating Capacity 6500 Cooling Power Input 1786 Heating Power Input 1645 Cooling Power Current Heating Power Current...
  • Page 25 Service Manual Outdoor Unit Model GWH24ATDXE-K6DNA1A/O Outdoor Unit Product Code CB574W02900 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model FTz-SM151AXBD Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA 6.06 Compressor Power Input 1330 Compressor Overload Protector Throttling Method Capillary Set Temperature Range °C...
  • Page 26 Service Manual Model GWH24ATEXF-K6DNA1A Product Code CB574001900 CB574001901 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 7100 Heating Capacity 7800 Cooling Power Input 2030 Heating Power Input 2000 Cooling Power Current Heating Power Current Rated Input 3000 Rated Cooling Current...
  • Page 27 Service Manual Outdoor Unit Model GWH24AFE-K6DNA2I/O Outdoor Unit Product Code CB363W04100 CB363W04101 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXFS-M180zX170 Compressor Oil FW68DA or equivalent Compressor Type Twin Rotary Compressor LRA. Compressor RLA Compressor Power Input 1610 Compressor Overload Protector KSD115°C HPC 115/95U1 Throttling Method Electron expansion valve...

  • Page 28: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature Cooling: Hrating: Condition Cooling Condition Heating Indoor: DB27°C WB19°C Indoor: DB20°C Indoor air flow: Super High Indoor air flow: Super High Pipe length: 5m Pipe length: 5m -15 -10 Outdoor temp. (°C) Outdoor temp.

  • Page 29: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit Ø70 Ø70 Ø70 Ø70 Unit: mm Model 191.5 561.5 1078 258.5 561.5 Technical Information...

  • Page 30: Outdoor Unit

    Service Manual 3.2 Outdoor Unit Unit: mm 09K / 12K / 18K(XB) Unit: mm Technical Information...
  • Page 31 Service Manual 18K(XD) Unit: mm 24K(XE) 316.5 Unit: mm Technical Information...
  • Page 32 Service Manual 24K(AFE) Technical Information...

  • Page 33: Refrigerant System Diagram

    4. Refrigerant System Diagram COOLING Service Manual 07K / 09K / 12K except GWH12ATCXB-K6DNA1A / 18K(XB) / 24K(XE) Cooling model Outdoor unit Indoor unit Outdoor unit Indoor unit Gas pipe Gas pipe side side Valve Valve 4-Way valve Di s charge Di s charge Heat Heat...

  • Page 34: Electrical Part

    5. Electrical Part Service Manual 5.1 Wiring Diagram ● Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 35 Service Manual GWH09ATCXB-K6DNA1A/I GWH12ATCXB-K6DNA1A/I OPTIONAL OPTIONAL TUBE ROOM GATE CONTROL TEMP. MOTOR WIRED TEMP. CONTROLLER (DRY CONTACT) SENSOR SENSOR TERMINAL DOOR-C COM-MANUAL BLOCK T-SENSOR DC-MOTOR (DRY-C) N(1) N(N1) COM-OUT PRINTED CIRCUIT BOARD JUMP AC-L YEGN (SWING-UD1) CONNECTING YEGN HEALTH SWING-UD SWING-LR DISP CABLE...
  • Page 36 Service Manual GWH18ATDXB-K6DNA1A/I GWH18ATDXB-K6DNA4A/I GWH18ATDXD-K6DNA1A/I OPTIONAL TUBE ROOM TEMP. TEMP. RECEIVER AND MOTOR WIRED DISPLAY BOARD SENSOR SENSOR CONTROLLER AP1 DISPLAY θ θ TERMINAL BLOCK T-SENSOR DISP DC-MOTOR COM-MANUAL N(1) N(N1) COM-OUT JUMP PRINTED CIRCUIT BOARD AC-L YEGN YEGN SWING-UD HEALTH DOOR-C (SWING-UD1)
  • Page 37 Service Manual ● Outdoor Unit GWH07AGA-K6DNA1A/O WARNING OPTIONAL OPTIONAL OPTIONAL Bottom 4-WAY ELECTRONIC OUTTUBE OUTROOM EXHAUST Please don't touch any Band EXPANSION VALVE TEMP. TEMP. TEMP. VALVE Heater terminal when the machine SENSOR SENSOR SENSOR is running ,stopping or T(YE)
  • Page 38 Service Manual GWH18ATDXB-K6DNA1A/O GWH18ATDXD-K6DNA1A/O GWH24ATDXE-K6DNA1A/O GWH24AFE-K6DNA2I/O WARNING OPTIONAL OPTIONAL P l e a s e d o n ' t t o u c h a n y BOTTOM ELECTRONIC OUTTUBE OUTROOM EXHAUST t e r m i n a l w h e n t h e m a c h i n e i s BAND EXPANSION TEMP.

  • Page 39: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram ● Indoor Unit GWH07ATAXA-K6DNA1B/I GWH07ATAXA-K6DNA4B/I GWH09ATAXB-K6DNA1B/I GWH09ATAXB-K6DNA4B/I GWH09ATBXB-K6DNA1B/I GWH12ATBXB-K6DNA1D/I GWH12ATBXB-K6DNA4D/I Name Name Communication wire terminal 10 Up & down swing terminal 1 Live wire terminal (outdoor unit) Left & right swing terminal Fuse 12 PG feedback terminal Live wire terminal 13 Display board terminal Neutral wire terminal...
  • Page 40 Service Manual GWH12ATCXB-K6DNA1D/I GWH12ATCXB-K6DNA4D/I Name Name PG motor terminal 10 Display board terminal Neutral wire terminal Temperature sensor tube terminal Fuse 12 Door-control terminal Cold plasma terminal 13 Wired controller Ultraviolet cleaning terminal 14 Jumper Up & down swing terminal 2 15 Communication wire terminal Up &...
  • Page 41 Service Manual GWH09ATCXB-K6DNA1A/I GWH12ATCXB-K6DNA1A/I GWH18ATDXB-K6DNA1A/I GWH18ATDXB-K6DNA4A/I GWH18ATDXD-K6DNA1A/I GWH24ATDXE-K6DNA1A/I GWH24ATDXE-K6DNA2A/I GWH24ATDXE-K6DNA3A/I GWH24ATDXE-K6DNA4A/I GWH24ATEXF-K6DNA1A/I Name Name Earthing wire terminal Up & down swing terminal 2 Brushless DC Motor terminal Up & down swing terminal 1 Live wire terminal Display board terminal Fuse Temperature sensor tube terminal Neutral wire terminal Door-control terminal (Dry contact)
  • Page 42 Service Manual ● Outdoor Unit GWH07AGA-K6DNA1A/O Name Name Compressor terminal Chassis electric heater terminal EE flash drive terminal 4-way valve terminal Electronic expansion valve terminal Neutral wire terminal Compressor overload terminal Communication wire terminal Temperature sensor terminal Live wire terminal...
  • Page 43 Service Manual GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O GWH09ATCXB-K6DNA1A/O GWH12ATBXB-K6DNA1D/O GWH12ATCXB-K6DNA1A/O GWH12ATCXB-K6DNA1D/O GWH18ATDXB-K6DNA1A/O Name Name Earthing wire terminal Fan motor terminal Live wire terminal Electronic expansion valve terminal Neutral wire terminal Compressor overload terminal Communication terminal Temperature sensor terminal 4-way valve terminal EE flash drive terminal Chassis electric heater terminal Compressor terminal Technical Information...
  • Page 44 Service Manual GWH18ATDXD-K6DNA1A/O 9 10 Name Name Earthing wire Outdoor fan Live wire DRED(Reserved) Neutral wire Electronic expansion valve Communication wire Compressor Overload 4-way valve Temperature sensor Electric heating of chasssis EE Flash drives DRED-DC(Reserved) Compressor Technical Information...
  • Page 45 Service Manual GWH24ATDXE-K6DNA1A/O Name Name Earthing wire terminal Fan terminal Live wire terminal Temperature sensor terminal Communication wire terminal 10 Overload of compressor terminal Neutral wire terminal Dred power supply terminal 4-way valve terminal 12 Dred communication terminal Electric heating belt of chassis terminal 13 EE Flash drives Electronic expansion valve terminal Technical Information...
  • Page 46 Service Manual GWH24AFE-K6DNA2I/O Name Name Terminal of electronic expansion valve 4-way valve E disk(Reserved) Electric heating belt of chassis Computer monitoring interface 2-way valve EE flash drive DC motor Grounding wire Temperature sensor Live wire Overload interface of compressor Neutral wire Terminal of compressor Communication wire Interface of program debugs...

  • Page 47: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction for YAP1F7(WiFi) Buttons on remote controller Introduction for buttons on remote controller NOTE: 1. 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 48 Service Manual ● When selecting fan mode, the air conditioner will only blow button TURBO fan, no cooling and no heating. Press "FAN" button to adjust fan Under COOL or HEAT mode, press this button to turn to quick speed. Press " "...
  • Page 49 Service Manual position. ● After that, air conditioner will be turned on or turned off according to setting time. ON/OFF button has no effect on setting. ● When selecting " ", air conditioner is blowing fan at If you don’t need this function, please use remote controller to fixed angle.
  • Page 50 Service Manual (1) Under Sleep 3 mode, press “Turbo” button for a long time, function; LCD display " ". Press this button again to repeat the remote controller enters into user individuation sleep setting operation above. status, at this time, the time of remote controller will display “1hour”, ●...
  • Page 51 Service Manual ● Under 8°C heating function, set temperature can't be adjusted. ● If you want to cancel the power limiting function, press the button till the icon in remote controller is not displayed. Press "TURBO" button and the remote controller won't send signal.

  • Page 52: Remote Controller Introduction For Yay1F1

    Service Manual 6.2 Remote Controller Introduction for YAY1F1 Introduction for buttons on remote controller 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 53 Service Manual indoor ambient temperature). NOTE: ● Set temperature range from remote controller: 16~30°C(61~86°F). Some menu’s function may be unavailable under different models. ● This mode indicator is not available for some models. Light function ● Cooling only unit won't receive heat mode signal. If setting heat When selecting light function, light icon "...
  • Page 54 Service Manual procedure, if continuously within 10s, there is no button pressed, the sleep curve setting within 10s, there is no button pressed, the no display (stops at current sleep curve setting status will be automatically quit and resume position) to display the original displaying.
  • Page 55 Service Manual 1. Child lock function ● Maximum power limited under the mode is lower than that of mode. Press "+" and "-" simultaneously to turn on or turn off child lock ● If the current power is lower than the maximum power of function.
  • Page 56 Service Manual be adjusted and it won't be displayed under AUTO mode; when pressing "+" and "SET" buttons simultaneously under off status for consecutive 5s, the set temperature can be adjusted under AUTO mode. After setting is succeeded, the set temperature on the remote controller flashes for 3 times.

  • Page 57: Brief Description Of Models And Functions

    Service Manual 6.3 Brief Description of Models and Functions Indoor Unit ● will operate at auto mode. Indoor fan operates at auto fan speed and swing function is turned on. Press this auto button at ON 1. Basic function of system status to turn off the unit.
  • Page 58 Service Manual mode. In this case, the compressor, the ODU fan motor and the less than 180+Ts(0≤T≤15). T is the variable of controller. Thats to IDU fan motor operates at set speed. say the minimum stop time of compressor is 180s~195s. Read-in T ◆...
  • Page 59 Service Manual environment thermo-bulb, T a. Defrosting starts: the compressor is shut down, and restarts it heating indoor ambient temperature compensation the indoor ambient temperature compensation during heating after 55-second delay. operations) b. Defrosting ends: the compressor stops, then starts it after (1) If the compressor is shut down, and [(T –...
  • Page 60 Service Manual you should press the ON/OFF button to resume. The protection time of compressor exceeds the [t Protection times clearing of times of compressor is allowed to clear after the compressor run [t module] , the discharge protection is cleared to recount. Stopped ] 30 minutes.
  • Page 61 Service Manual VPFC does not open the undervoltage protection valuetime, if the 3. Outdoor Exhaust Sensor: PFC is turned on, the bus voltage is smaller than the VPFC Open (a) The compressor only detect the sensor failure after it start up 3 undervoltage protection value Times Under voltage protection, min in normal mode;...

  • Page 62: Gree+ App Operation Manual

    Service Manual 6.4 GREE+ App Operation Manual Control Flow Chart Internet Gree Cloud Gree Cellular/ Home Wi-Fi intelligent home Other Wi-FI appliances Home wireless router Home Wi-Fi GREE+ APP Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version...

  • Page 63: Ewpe Smart App Operation Manual

    Service Manual 6.5 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...

  • Page 64: Part Ii : Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! by yourself. P l e a s e r e a d t h e s a f e t y p r e c a u t i o n s c a r e f u l l y b e f o r e 11.
  • Page 65 Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. WARNINGS 1. When installing or relocating the unit, be sure to keep the If compressor starts running when stop valve is open and refrigerant circuit free from air or substances other than the connection pipe is not yet connected, air will be sucked in and specified refrigerant.
  • Page 66 Service Manual Safety Precautions for Refrigerant This marking indicates that this product should not be disposed with other house hold wastes. To prevent possible ● To realize the function of the air conditioner unit, a special harm to the environment or human health from uncontrolled refrigerant circulates in the system.
  • Page 67 Service Manual 4. Welding table a - Minimum room area ( m ● If you should cut or weld the refrigerant system pipes in the Charge Floor Window Wall Ceiling amount location mounted mounted mounted process of maintaining, please follow the steps as below: (kg) a.
  • Page 68 Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter Pipe expander Pipe bender...

  • Page 69: Installation

    8. Installation Service Manual 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 Installation and Maintenance...
  • Page 70 Service Manual 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 the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 71: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking (6) The appliance must be installed 2.5m above floor. (7) Don't install the indoor unit right above the electric appliance. Name Name (8) Please try your best to keep way from fluorescent lamp. Indoor unit Sealing gum 3.

  • Page 72: Installation Of Indoor Unit

    Service Manual (4) The appliance must be positioned so that the plug is accessible. (3) Drill a piping hole with the diameter of Φ55mm or Φ70mm on the selected outlet pipe position. In order to drain smoothly, slant (5) An all-pole disconnection switch having a contact separation of the piping hole on the wall slightly downward to the outdoor side at least 3mm in all poles should be connected in fixed wiring.
  • Page 73 Service Manual ● For the air conditioner with plug, the plug should be reachable after finishing installation. ● For the air conditioner without plug, an air switch must be installed in the line. The air switch should be all-pole parting and Insulating pipe the contact parting distance should be more than 3mm.

  • Page 74: Installation Of Outdoor Unit

    Service Manual to the actual installation situation) (3) Bind them evenly. (4) The liquid pipe and gas pipe should be bound separately at the (1) Select installation location according to the house structure. end. (2) Fix the support of outdoor unit on the selected location with expansion screws.

  • Page 75: Vacuum Pumping And Leak Detection

    Service Manual NOTE: NOTICE: ● When there're multiple cables passing through ● After tightening the screw, pull the power cord slightly to check cross-hole it, the cross-hole of handle should be knocked off if it is firm. and eliminate the sharp burrs for avoid damaging ●...

  • Page 76: Check After Installation And Test Operation

    Service Manual (2) Connect the charging hose of piezometer to the refrigerant Items to be checked Possible malfunction charging vent of gas valve and then connect the other charging Has the unit been installed The unit may drop, shake or hose to the vacuum pump.

  • Page 77: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Display Method Possible Causes(For specific maintenance Malfunction of Indoor Unit A/C Status method, please refer to the following procedure of Name (Error Code) troubleshooting) During cooling and drying operation, Possible reasons: High pressure except indoor fan operates, all loads 1.
  • Page 78 Service Manual During cooling and drying operating, Outdoor ambient Outdoor temperature sensor hasn't been connected well or is compressor stops while indoor fan temperature sensor is damaged. Please check it by referring to the resistance table operates; During heating operation, the open/short circuited for temperature sensor) complete unit will stop operation...
  • Page 79 Service Manual During cooling and drying operation, Malfunction of module compressor will stop while indoor fan will temperature sensor operate; Replace outdoor control panel AP1 During heating operation, the complete circuit unit will stop After the complete unit is de-energized for 20mins, check During cooling operation, compressor will Module high whether the thermal grease on IPM Module of outdoor...
  • Page 80 Service Manual During cooling and drying operation, Malfunction of phase compressor will stop while indoor fan will current detection operate; Replace outdoor control panel AP1 circuit for compressor During heating operation, the complete unit will stop During cooling and drying operation, Malfunction of voltage compressor will stop while indoor fan will dropping for DC...

  • Page 81: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting ● Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 82 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ●...
  • Page 83 Service Manual 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
  • Page 84 Service Manual 4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
  • Page 85 Service Manual 5. High Temperature and Overload Protection (AP1 below means control board of outdoor unit) E8 Start Normal protection, please use it Unit restarts If the outdoor ambient temperature is after improving the outdoor ambient normally higher than 53°C? temperature Improve the radiating environment of Unit restarts...
  • Page 86 Service Manual 6. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected Replace the detecting plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 87 Service Manual ● Outdoor unit: 1. Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: ● Detect if the voltage of L and N terminal of wiring board is between 210AC-240AC by alternating voltage meter; ●...
  • Page 88 Service Manual 2. Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit) Main detection point: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan is running normal; ●...
  • Page 89 Service Manual 3. IPM protection, phase current overcurrent (the control board as below indicates the control board of outdoor unit) H5/P5 Mainly detect: (1) Compressor COMP terminal (2) voltage of power supply (3) compressor (4) Refrigerant-charging volume (5) air outlet and air inlet of outdoor/indoor unit Troubleshooting: Turn on the unit after energization...
  • Page 90 Service Manual 4. Start-up failure (following AP1 for outdoor unit control board) Mainly detect: ●Whether the compressor wiring is connected correct? ●Is compressor broken? ●Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
  • Page 91 Service Manual 5. Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs once the Out of step occurs in unit is powered on.
  • Page 92 Service Manual 6. Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV connected well or not? Is PMV damaged? ●Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
  • Page 93 Service Manual 7. Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit main board communication circuit? Is communication circuit damaged? ●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...
  • Page 94 Service Manual 8. Malfunction of Overcurrent Protection Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate eliminated Is the supply voltage too low...

  • Page 95: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 96 Service Manual 4. ODU Fan Motor can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit diagram make sure all wiring terminals are connected connection firmly Measure the capacity of fan capacitor with an...

  • Page 97: Exploded View And Parts List

    10. Exploded View and Parts List Service Manual 10.1 Indoor Unit ATA / ATB ON/OFF ON/OFF MODE MODE I FEEL I FEEL T-ON T-OFF T-ON T-OFF TEMP TEMP CLOCK CLOCK LIGHT LIGHT WiFi WiFi SLEEP SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 98 Service Manual Description Description Stepping Motor O-Gasket sub-assy of Bearing Electric Box Assy Ring of Bearing Cable Clamp 2 Axile Bush Sub-assy Evaporator Support Terminal Board Cross Flow Fan Wire Clamp Evaporator Sub-Assy Jumper Electric Box Cover Evaporator Assy Front Panel Temp Sensor Sleeving Front Case Sub-assy Drainage Hose...
  • Page 99 Service Manual ON/OFF ON/OFF MODE MODE I FEEL I FEEL T-ON T-OFF T-ON T-OFF TEMP TEMP CLOCK CLOCK LIGHT LIGHT WiFi WiFi SLEEP SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 100 Service Manual Description Description Connecting pipe clamp Front Panel Crank Guide Louver Stepping Motor Axile Bush Front Case Stepping Motor Screw Cover Swing Lever Filter Sub-Assy Air Louver Air Louver (left) Air Louver(right) Electric Box Assy Helicoid Tongue Main Board Left Axile Bush Supporter(Electric Box) Rear Case Sub-Assy...
  • Page 101 Service Manual ATD (Sweep in all directions) ON/OFF ON/OFF MODE MODE I FEEL I FEEL T-ON T-OFF T-ON T-OFF TEMP TEMP CLOCK CLOCK LIGHT LIGHT WiFi WiFi SLEEP SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 102 Service Manual Description Description Front Panel Drainage Hose Guide Louver Crank Axile Bush Stepping Motor Front Case Stepping Motor Screw Cover Plasmacluster Ion Filter Sub-Assy Swing Lever Air Louver (left) Air Louver Helicoid Tongue Air Louver(right) Left Axile Bush Electric Box Rear Case Sub-Assy Main Board Cross Flow Fan...
  • Page 103 Service Manual ATD (Sweep up and down) ON/OFF ON/OFF MODE MODE I FEEL I FEEL T-ON T-OFF T-ON T-OFF TEMP TEMP CLOCK CLOCK LIGHT LIGHT WiFi WiFi SLEEP SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 104 Service Manual Description Description Front Panel Connecting pipe clamp Guide Louver Drainage Hose Axile Bush Crank Front Case Stepping Motor Screw Cover Plasmacluster Ion Filter Sub-Assy Air Louver(right) Air Louver (left) Electric Box Helicoid Tongue Main Board Left Axile Bush Supporter(Electric Box) Rear Case Sub-Assy Terminal Board...
  • Page 105 Service Manual ON/OFF ON/OFF MODE MODE I FEEL I FEEL T-ON T-OFF T-ON T-OFF TEMP TEMP CLOCK CLOCK LIGHT LIGHT WiFi WiFi SLEEP SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 106 Service Manual Description Description Front Panel Rear Case Filter Sub-Assy Connecting pipe clamp Screw Cover Brushless DC Motor Electric Box Cover Motor Press Plate Front Case Cross Flow Fan Cable Clamp 2 Wall Mounting Frame Terminal Board Thermal Insulation Pipe Supporter Evaporator Assy Jumper...

  • Page 107: Outdoor Unit

    Service Manual 10.2 Outdoor Unit GWH07AGA-K6DNA1A/O The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 108 Service Manual Description Description Left Side Plate Earthing Plate Sub-Assy Motor Support Handle Top Cover Sub-Assy Valve Support Block Top Cover Right Side Plate Condenser Sub-Assy Cut off Valve 1/4 Sponge(Condenser) Valve Support Condenser Assy Sensor Insert Electric Box Assy Compressor and Fittings Rear Grill 4-Way Valve Assy...
  • Page 109 Service Manual GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O GWH09ATCXB-K6DNA1A/O GWH12ATBXB-K6DNA1D/O GWH12ATCXB-K6DNA1D/O GWH18ATDXB-K6DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 110 Service Manual Description Description Coping Motor Support Rear Grill Brushless DC Motor Condenser Assy Cabinet Capillary Sub-Assy Front Grill Right Side Plate Axial Flow Fan Cover of Pass Wire Left Side Plate Valve Cover Electric Box Assy Cut-off valve Sub-Assy Electric Box Cut-off valve Main Board...
  • Page 111 Service Manual GWH12ATCXB-K6DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 112 Service Manual Description Description Coping Clapboard Rear Grill Motor Support Condenser Assy Brushless DC Motor Right Side Plate Cabinet Electric Expand Valve Fitting Front Grill Electronic Expansion Valve Axial Flow Fan Handle Left Side Plate Valve Cover Electric Box Assy Cut-off valve Sub-Assy Electric Box Cut-off valve...
  • Page 113 Service Manual GWH18ATDXD-K6DNA1A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 114 Service Manual Description Description Top Cover Assy Compressor and Fittings Support Board(Condenser) Chassis Sub-assy 4-way valve Assy Motor Support Sponge(Condenser) Brushless DC Motor Temperature Sensor Support Axial Flow Fan Condenser Assy Cabinet Temp Sensor Sleeving Front Grill Sensor Insert Drainage Joint(ODU) Right Side Plate Left Side Plate Earthing Plate Sub-Assy...
  • Page 115 Service Manual GWH24ATDXE-K6DNA1A/O (The front grill appearance is for reference only.) The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 116 Service Manual Description Description Front Panel Assy Valve Support Block Front grill Valve Cover Front Panel handle Axial Flow Fan Sensor Insert Drainage hole Cap Temp Sensor Sleeving Chassis Sub-assy Condenser Assy Drainage Joint Clapboard Sub-Assy Compressor and Fittings Motor Support Sub Compressor Gasket Top Cover Sub-Assy 4-Way Valve...
  • Page 117 Service Manual GWH24AFE-K6DNA2I/O 9 10 11 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 118 Service Manual Description Description Front Grill 4-way valve Assy Cabinet Condenser Assy Axial Flow Fan Clapboard Assy Chassis Sub-assy Motor Support Sub-Assy Compressor and fittings Brushless DC Motor Electron expansion valve Top Cover Assy Electric Expand Valve Fitting Left Side Plate Right Side Plate Assy Condenser Left Border Plate Valve Support Sub-Assy...

  • Page 119: Removal Procedure

    11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure Before disassemble Turn off the air conditioner and disconnect the power before disassemble the air conditioner. 1. Remove filter Filter Hold the handle on the filter, pull it upwards to let the clasp at the top part of the filter loose, pull it forwards and then the filter can be pulled out.
  • Page 120 Service Manual Step Procedure 3. Remove panel Panel rotation Display Panel Screw Open the front 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 121 Service Manual Step Procedure 6. Remove electric box assy Screw Remove the screw fixing electric box assy. Grounding Indoor tube screw temperature sensor Electric box assy Wiring terminal of motor Main board ① Cut off the wire binder and pull out the Wiring terminal indoor tube temperature sensor.
  • Page 122 Service Manual Step Procedure 7. Remove evaporator assy Remove 2 screws fixing evaporator assy. Screws Connection pipe clamp At the back of the unit, Loosen the clasp of the connection pipe clamp and then remove the connection pipe clamp. Clasp First remove the left side of evaporator from the groove of bottom shell and then remove the right side from the clasp on the bottom shell.
  • Page 123 Service Manual Step Procedure 8. Remove motor and cross flow fan Remove 3 screws fixing motor clamp and then remove the motor clamp. Screws cross flow fan motor Screw Loose the screws (2-3 circles) used for fixing the cross flow fan, pull right to pull out the motor. 9.

  • Page 124: Removal Procedure Of Outdoor Unit

    Service Manual 11.2 Removal Procedure of Outdoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the connection screw fixing the big handle and then remove the valve cover. valve cover 3.
  • Page 125 Service Manual Step Procedure 4. Remove grille grille Remove connection screws between the front grille and the front panel. Then remove the grille. 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
  • Page 126 Service Manual Step Procedure 7. Remove axial flow blade axial flow blade Remove the nut on the blade and then remove the axial flow blade. 8. Remove motor and motor support motor support Remove the tapping screws fixing the motor and motor disconnect the leading wire insert of the motor.
  • Page 127 Service Manual Step Procedure 10. Remove isolation sheet isolation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet. 11. Remove compressor 4-way valve Unsolder the welding joint connecting the capillary, valves and the outlet pipe of condenser to remove the capillary.
  • Page 128 Service Manual Caution: discharge the refrigerant 09K / 12K except GWH12ATCXB-K6DNA1A/O / GWH18ATDXB-K6DNA1A/O completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and then remove them. Valve cover 3.
  • Page 129 Service Manual Step Procedure 4. 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 5. Remove right side plate assy Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 130 Service Manual Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the Motor motor support to remove it. Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 131 Service Manual Step Procedure 10. 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. Note: Liquid valve Discharge the refrigerant completely befor unsoldering;...
  • Page 132 Service Manual GWH12ATCXB-K6DNA1A/O Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and Valve cover then remove them. 3. Remove top cover Top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 133 Service Manual Step Procedure 4. 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 5. Remove right side plate assy Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 134 Service Manual Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the Motor motor support to remove it. Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 135 Service Manual Step Procedure 10. 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. Note: Liquid valve Discharge the refrigerant completely befor unsoldering;...
  • Page 136 Service Manual GWH18ATDXD-K6DNA1A/O Caution: discharge the refrigerant completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Remove the screws fixing big handle, valve cover and then remove them. big handle valve cover 3. Remove top cover top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 137 Service Manual Step Procedure 4. 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 5. Remove right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the terminal board, rescrew the screws fixing the right plate, and remove the right side plate assy.
  • Page 138 Service Manual Step Procedure 7. Remove electric box assy 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. 8.
  • Page 139 Service Manual Step Procedure 10. Remove 4-way valve assy 4-way valve assy Unsolder the welding joints connecting the 4-way valve assy, remove the 4-way valve. Note: Before unsoldering the welding joint, wrap the 4-way valve with a wet cloth completely to avoid damage to the valve caused by high temperature.
  • Page 140 Service Manual Step Procedure Compressor 13. Remove compressor Remove the 3 foot nuts on the compressor and then remove the compressor. Installation and Maintenance...
  • Page 141 Service Manual GWH24ATDXE-K6DNA1A/O Caution: discharge the refrigerant completely before removal. NOTE: The front grill appearance is for reference only. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and then remove them.
  • Page 142 Service Manual Step Procedure 4. 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 5. Remove right side plate assy Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 143 Service Manual Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the Motor motor support to remove it. Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 144 Service Manual Step Procedure 10. 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. Note: Liquid valve Discharge the refrigerant completely befor unsoldering;...
  • Page 145 Service Manual Caution: discharge the refrigerant GWH24AFE-K6DNA2I/O completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover Big handle Remove the screws fixing big handle, valve cover and then remove them. Valve cover 3. Remove top cover Top cover Remove the screws fixing top panel and then remove the top panel.
  • Page 146 Service Manual Step Procedure 4. 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 5. Remove right side plate assy Right side plate assy Rescrew the ground screws, remove the ground wires, loosen the screws fixing terminal board, remove the...
  • Page 147 Service Manual Step Procedure 7. Remove motor support and motor Motor support Remove the screws fixing the motor support and lift the motor support to remove it. Motor Remove the screws fixing the motor and then remove the motor. 8. Remove electric box assy Electric box assy Remove the terminals, lift up and rotate the electrical box assy to the right so that the snaps on the clapboard...
  • Page 148 Service Manual Step Procedure 10. 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. Note: Liquid valve Discharge the refrigerant completely befor unsoldering;...

  • Page 149: Appendix

    Appendix: Service Manual Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature（℉） temperature（℉） temperature（℉） （℉） （℃） （℉） （℃）...

  • Page 150: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 151: Appendix 4: List Of Resistance For Temperature Sensor

    Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90 36.32...
  • Page 152 JF00305141 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.

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