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Change for Life
Service Manual
Models:
GWH09MB-K3DNA4G
GWH09MB-K3DNC9G
GWH09MB-K3DNC1G
GWH09MB-K3DNC2G
GWH09MB-K3DNC5G
GWH09MB-K3DNB7G
GWH09MB-K3DNA5G
GWH09MB-K3DNC2G
GWH09MB-K3DNE1G
GWH09MB-K3DNA3G
GWH09MB-K3DND3G
GWH09MB-K3DNA8G
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
GWH12MB-K3DNB7G
GWH12MB-K3DNC9G
GWH12MB-K3DNA4G
GWH12MB-K3DNC1G
GWH12MB-K3DNC2G
GWH12MB-K3DNC5G
GWH12MB-K3DNA5J
GWH12MB-K3DNC2G
GWH12MB-K3DNA2I
GWH12MB-K3DNE1G
GWH12MB-K3DNA3I
GWH12MB-K3DNA8G
GWH12MB-K3DND3G
(Refrigerant:R410A)

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Summary of Contents for Gree GWH09MB-K3DNA4G

  • Page 1 Change for Life Service Manual Models: GWH09MB-K3DNA4G GWH12MB-K3DND3G GWH12MB-K3DNB7G GWH09MB-K3DNC9G (Refrigerant:R410A) GWH12MB-K3DNC9G GWH09MB-K3DNC1G GWH12MB-K3DNA4G GWH09MB-K3DNC2G GWH12MB-K3DNC1G GWH09MB-K3DNC5G GWH12MB-K3DNC2G GWH09MB-K3DNB7G GWH12MB-K3DNC5G GWH09MB-K3DNA5G GWH12MB-K3DNA5J GWH09MB-K3DNC2G GWH12MB-K3DNC2G GWH09MB-K3DNE1G GWH12MB-K3DNA2I GWH09MB-K3DNA3G GWH12MB-K3DNE1G GWH09MB-K3DND3G GWH12MB-K3DNA3I GWH09MB-K3DNA8G GWH12MB-K3DNA8G GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 2: Table Of Contents

    Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 1. Summary ........................1 2. Specifications ......................3 2.1 Specification Sheet ......................3 2.2 Operation Characteristic Curve ..................11 2.3 Capacity Variation Ratio According to Temperature ............11 2.4 Cooling and Heating Data Sheet in Rated Frequency ...........12 2.5 Noise Curve ........................12 3.
  • Page 3 Service Manual 9. Maintenance ......................39 9.1 Error Code List .......................39 9.2 Procedure of Troubleshooting ..................46 9.3 Troubleshooting for Normal Malfunction .................60 10. Exploded View and Parts List ..............62 10.1 Indoor Unit ........................62 10.2 Outdoor Unit .........................73 11. Removal Procedure ..................76 11.1 Removal Procedure of Indoor Unit ................76 11.2 Removal Procedure of Outdoor Unit ................81 Appendix:...
  • Page 4: Part Ⅰ : Technical Information

    Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit GWH09MB-K3DNA4G/I GWH09MB-K3DNC1G/I GWH12MB-K3DNA4G/I GWH12MB-K3DNC1G/I GWH09MB-K3DNC5G/I GWH09MB-K3DNC2G/I GWH12MB-K3DNC5G/I GWH12MB-K3DNC2G/I GWH09MB-K3DNB7G/I GWH09MB-K3DNC9G/I GWH12MB-K3DNB7G/I GWH12MB-K3DNC9G/I GWH09MB-K3DNA5G/I GWH12MB-K3DNA2I/I GWH12MB-K3DNA5J/I GWH09MB-K3DNE1G/I GWH09MB-K3DNA3G/I GWH12MB-K3DNE1G/I GWH12MB-K3DNA3I/I Technical Information...
  • Page 5 TIMER TURBO SLEEP LIGHT Outdoor unit Unit model Unit code Indoor unit model Indoor unit code Model of Outdoor Unit model GWH09MB-K3DNA4G CB161007800 GWH09MB-K3DNA4G/I CB161N07800 GWH09MB-K3DNC1G CB139006000 GWH09MB-K3DNC1G/I CB139N06000 GWH09MB-K3DNC2G CB180001602 GWH09MB-K3DNC2G/I CB180N01602 GWH09MB-K3DNE3G/O GWH09MB-K3DNC5G CB179004000 GWH09MB-K3DNC5G/I CB179N04000 CB404W03600 GWH09MB-K3DNA5G...
  • Page 6: Specifications

    Service Manual 2. Specifications 2.1 Specification Sheet 1.GWH09MB-K3DNA4G 2.GWH09MB-K3DNC1G 3.GWH09MB-K3DNC2G Model 4.GWH09MB-K3DNC5G 5.GWH09MB-K3DNA5G 6.GWH09MB-K3DNA3G 7.GWH09MB-K3DND3G 1.CB161007800 2.CB139006000 3.CB180001602 Product Code 4.CB179004000/CB179004002 5.CB162009902 6.CB171011403 7.CB405004400 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2600 Heating Capacity...
  • Page 7 Service Manual Model of Outdoor Unit GWH09MB-K3DNE3G/O Outdoor Unit Product Code CB404W03600 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXA-A091zE190A Compressor Oil RB68EP Compressor Type Rotary L.R.A. 16.5 Compressor RLA Compressor Power Input Overload Protector 1NT11L-6233 Throttling Method Electron expansion valve Operation Temp 16~30...
  • Page 8 Service Manual 1.GWH09MB-K3DNC2G 2. GWH09MB-K3DNC5G 3.GWH09MB-K3DNB7G 4.GWH09MB-K3DNC9G Model 5.GWH09MB-K3DNE1G 6.GWH09MB-K3DNC1G 7.GWH09MB-K3DNA8G 1.CB180001601 2.CB179004001 3.CB164003001 Product Code 4.CB145006001 5.CB143002101 6.CB139006001 7.CB173006701 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 2600 Heating Capacity 3000 Cooling Power Input Heating Power Input Cooling Power Current 3.80...
  • Page 9 Service Manual Model of Outdoor Unit GWH09MB-K3DNE3G/O Outdoor Unit Product Code CB404W03601 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXA-A091zE190A Compressor Oil RB68EP Compressor Type Rotary L.R.A. 16.5 Compressor RLA Compressor Power Input Overload Protector 1NT11L-6233 Throttling Method Electron expansion valve Operation Temp 16~30...
  • Page 10 Service Manual 1.GWH12MB-K3DNA4G 2.GWH12MB-K3DNC1G 3.GWH12MB-K3DNA5J Model 4.GWH12MB-K3DNA2I 5.GWH12MB-K3DNC2G 6.GWH12MB-K3DNA3I 7.GWH12MB-K3DND3G 1.CB161007900 2.CB139006100 3.CB162010002 Product Code 4.CB181007700 5.CB180001702 6.CB171012900 7.CB405004500 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3500 Heating Capacity 4000 Cooling Power Input 1170 Heating Power Input 1200...
  • Page 11 Service Manual Model of Outdoor Unit GWH12MB-K3DNE3G/O Outdoor Unit Product Code CB404W03500 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXA-A091zE190A Compressor Oil RB68EP Compressor Type Rotary L.R.A. 16.5 Compressor RLA Compressor Power Input Overload Protector 1NT11L-6233 Throttling Method Electron expansion valve Operation Temp 16~30...
  • Page 12 Service Manual 1.GWH12MB-K3DNB7G 2.GWH12MB-K3DNC9G 3.GWH12MB-K3DNC5G 4.GWH12MB-K3DNE1G Model 5.GWH12MB-K3DNC2G 6.GWH12MB-K3DNC1G 7.GWH12MB-K3DNA8G 1.CB164003101 2.CB145006101 3.CB179004101 4.CB143002201 Product Code 5.CB180001701 6.CB139006101 7.CB173006801 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3500 Heating Capacity 4000 Cooling Power Input 1170 Heating Power Input 1200...
  • Page 13 Service Manual Model of Outdoor Unit GWH12MB-K3DNE3G/O Outdoor Unit Product Code CB404W03501 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXA-A091zE190A Compressor Oil RB68EP Compressor Type Rotary L.R.A. 16.5 Compressor RLA Compressor Power Input Overload Protector 1NT11L-6233 Throttling Method Electron expansion valve Operation Temp 16~30...
  • Page 14: Operation Characteristic Curve

    Service Manual 2.2 Operation Characteristic Curve Cooling Heating Condition Condition Indoor:DB 20 °C Indoor:DB 27 WB19 °C °C Indoor air flow:Turbo Indoor air flow: Turbo Pipe length:5m Pipe length:5m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) 2.3 Capacity Variation Ratio According to Temperature Cooling Heating Cooling...
  • Page 15: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling Pressure of gas pipe Inlet and outlet pipe Compressor condition( connecting indoor and temperature of heat Fan speed of Fan speed of Model frequency (DB/WB) outdoor unit exchanger indoor unit outdoor unit...
  • Page 16: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 Unit:mm 3.2 Outoor Unit Unit:mm Technical Information...
  • Page 17: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Electron Strainer expansion valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...
  • Page 18: Electrical Part

    Service Manual 5. Electrical Part 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 19 Service Manual ● Outdoor Unit The electrical NOTE: heaters are Motor ground only optional. applies to the iron shell motor. 63610000076 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...
  • Page 20: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name Port of live wire Protective tube Live wire of health function Port of neutral wire Port of indoor fan Communication port Jumper cap Auto button Feedback of indoor fan Port of motor for vertical swing Buzzer Port of display...
  • Page 21 Service Manual Outdoor Unit ● Top view Name 1 Inductance pin2 2 Inductance pin1 3 Four-wayvalve 4 Compressor electric heater 5 Chassis electric heater 6 Fan neilsbed 7 Electric expansion valve 8 Temp. sensor 9 Main chip 10 EEPROM ● Bottom view Technical Information...
  • Page 22: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button +/- button FAN button MODE button I FEEL button button button CLOCK button TIMER ON/TIMER OFF button button X-FAN button (Note:X-FAN is the same with BLOW) TEMP button TURBO button SLEEP button...
  • Page 23 Service Manual 2. "+" or "-" button ● Press “+” or “-“ button once increase or decrease set temperature 1°C.Holding "+" or "-" button, 2s later, set temperature on remote controller will change quickly. On releasing button after setting is finished, temperature indicator on indoor unit will change accordingly. (Temperature can’t be adjusted under auto mode) ●...
  • Page 24 Service Manual ● After starting up TIMER ON or TIMER OFF, set the constant circulating valid. After that, air conditioner will be turned on or turned off according to setting time. ON/OFF button has no effect on setting. If you don’t need this function, please use remote controller to cancel it. button Press this button can select up&down swing angle.
  • Page 25 Service Manual Replacement of Batteries in Remote Controller 1.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. 2. Replace two 7# (AAA 1.5V) dry batteries, and make sure the position of “+” polar and “-“ polar are correct. 3.
  • Page 26: Brief Description Of Modes And Functions

    Service Manual 6.2 Brief Description of Modes and Functions 1. Temperature Parameters ◆ Indoor preset temperature (T preset ◆ Indoor ambient temperature (T amb. 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag;...
  • Page 27 Service Manual If T ≤T , the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan will operate amb. preset +2°C simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention. If T ≥T , the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after 60-second blow...
  • Page 28 Service Manual 1) Cooling overload a. If T ≤52°C, the unit will return to its original operation state. tube b. If T ≥55°C, frequency rise is not allowed. tube c. If T ≥58°C, the compressor will run at reduced frequency. tube d.
  • Page 29 Service Manual 2. In heating mode: 2.1 When the initial set temperature is 16°C, the unit will keep on running at this temperature; 2.2 When the initial set temperature is 17~20°C, the temperature will decrease 1°C by every hour after sleep function is set; the temperature will not change after decreasing 1°C;...
  • Page 30 Service Manual then the wind blade will swing between L and D. The air deflector has 7 swinging states: Location L, Location A, Location B, Location C, Location D, Location L to Location D, stop at any location between L-D (the included angle between L~D is the same). The air deflector will be closed at 0 Location, and the swinging is effectual only on condition that setting the swinging order and the inner fan is running.
  • Page 31 Service Manual (14)Electric heating band control of outdoor unit ① Compressor electric heating band control: a) Start condition: the compressor is in off status and the T ≤-5°C. outdoor ambient temperature b) Stop condition: the band is off when either of the below condition is met: 1.The compressor is in on status;...
  • Page 32: Part Ⅱ : Installation And Maintenance

    Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
  • Page 33 Service Manual To ensure safety, please be mindful of the following precautions. ●When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant. Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in injury.
  • Page 34 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
  • Page 35: Installation

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance...
  • Page 36 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 37: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking 8.4 Requirement For Electric Connection 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor Connection pipe power supply circuit and air switch.
  • Page 38 Service Manual in the holes. 5. Connect the Pipe of Indoor Unit (3) Fix the wall-mounting frame on the wall with tapping screws (1) Aim the pipe joint at the corresponding bellmouth.(As show (ST4.2X25TA) and then check if the frame is firmly installed by in Fig.5) pulling the frame.
  • Page 39 Service Manual 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover and (1) Bind up the connection pipe, power cord and drain hose then take down the cover.(As show in Fig.11) with the band.(As show in Fig.14) (2) Reserve a certain length of drain hose and power cord Screw...
  • Page 40: Installation Of Outdoor Unit

    Service Manual Refer to the following table for wrench moment of force: 8.6 Installation of Outdoor Unit Tightening torque(N . m) Hex nut diameter(mm) 1. Fix the Support of Outdoor Unit(Select it According to Φ6 15~20 the Actual Installation Situation) Φ9.52 30~40 Φ12...
  • Page 41: Vacuum Pumping And Leak Detection

    Service Manual (3) The water outlet can't be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.27) Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been...
  • Page 42: Maintenance

    Service Manual 9. Maintenance 9.1 Error Code List Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s)
  • Page 43 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 44 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 45 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 46 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 47 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 48 Service Manual Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display (during Indicator has 3 kinds of display blinking, ON 0.5s and OFF status and during blinking, ON Dual-8 Malfunction A/C status Possible Causes 0.5s) 0.5s and OFF 0.5s Code Name Operation...
  • Page 49: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting Indoot 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 50 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 51 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 52 Service Manual 4. Capacity charging malfunction (outdoor unit malfunction) (AP1 below means control board of outdoor unit) Main detection points: ● Detect if the voltage of L and N terminal of XT wiring board is between 210VAC-240VAC by alternating voltage meter; ●...
  • Page 53 Service Manual 5. IPM protection(H5), desynchronizing malfunction(H7), overcurrent of compressor phase current (P5) (AP1 below means control board of outdoor unit) Main detection points: ● Is voltage input within the normal range ● If the control board AP1 is well connected with compressor COMP? If they are loosened? If the connection sequence is correct? ●...
  • Page 54 Service Manual 6. High temperature and overload protection (E8)(AP1 below means control board of outdoor unit) E8 Main detection points: ● If the outdoor ambient temperature is in normal range; ● If the indoor and outdoor fan are running normally; ●...
  • Page 55 Service Manual 7. Start-up failure (LC) (AP1 below means control board of outdoor unit) Main detection points: ● If the compressor wiring is correct? ● If the stop time of compressor is sufficient? ● If the compressor is damaged? ● If the refrigerant charging amount is too much? Malfunction diagnosis process: Turn on the unit The stop time is not sufficient and...
  • Page 56 Service Manual 8. Overload and high discharge temperature malfunction H3/E4 Main detection points: ● If the electronic expansion valve is connected well? Is the electronic expansion valve damaged? ● If the refrigerant is leaked? ● The compressor overload protection terminal is not connected well with the mainboard? ●...
  • Page 57 Service Manual H3 or E4 is displayed 30min after power off the unit If the overload protector SAT is well connected? Under ambient temperature, test the resistance of overload protector with ohmmeter; resistance value should be<1000ohm Connect wire If the wiring terminal FA of electronic according to wiring expansion valve is well connected? diagram...
  • Page 58 Service Manual 9. PFC (correction for power factor) malfunction (outdoor unit malfunction) Main detection points: ● Check if power plug is connected well with the socket ● Check if the reactor of outdoor unit is damaged? Malfunction diagnosis process: start If power plug is connected Is the malfunction Connect the plug correctly...
  • Page 59 Service Manual 10. Communication malfunction (E6) Main detection points: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit are connected well and without damage; ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is damaged? Malfunction diagnosis process: If the unit operates normally...
  • Page 60 Service Manual 11. Malfunction of Overcurrent Protection E5 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 Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 61 Service Manual 12. Flow chart for outdoor communitcation circuit detecting: (1) Test the voltage between N point of wiring board and communication cable with universal meter. The voltage shall be variable. Otherwise, it might be malfunction of mainboard of indoor unit, or malfunction of mainboard of outdoor unit, or wrong wire connection of indoor and outdoor unit.
  • Page 62 Service Manual Start Measure voltage at the Test 10 position as shown in the diagram with a voltmeter Value jumping Measure voltage at the Test 15 position as shown in the diagram with a voltmeter Value jumping Fault with outdoor unit Measure voltage at the Test 11 position as shown in the diagram...
  • Page 63: 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 After energization, operation indicator isn’t bright wait for power recovery.
  • Page 64 Service Manual 4. Air Conditioner is Leaking Possible causes Discriminating method (air conditioner status) Troubleshooting Eliminate the foreign objects inside the drain Drain pipe is blocked Water leaking from indoor unit pipe Drain pipe is broken Water leaking from drain pipe Replace drain pipe Water leaking from the pipe connection place of Wrapping is not tight...
  • Page 65: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit MODE I F EEL CLOCK TIMER X-FAN TEMP TIMER TURBO SLEEP LIGHT The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 66 Service Manual Part Code Description GWH09MB-K3DNA4G/I GWH12MB-K3DNA4G/I GWH09MB-K3DND3G/I Product Code CB161N07800 CB161N07900 CB405N04400 Front Panel Sub-Assy 20012557 20012557 20012928S Display Board 30565012 30565012 30565145 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016...
  • Page 67 Service Manual Part Code Description GWH09MB-K3DNC1G/I GWH12MB-K3DNC1G/I GWH12MB-K3DNA8G/I Product Code CB139N06000 CB139N06100 CB173N06800 Front Panel Sub-Assy 20012584S 20012449S 20012200S Display Board 3056504301 30565088 3056504301 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 2001213915 00000200016...
  • Page 68 Service Manual Part Code Description GWH09MB-K3DNC2G/I GWH12MB-K3DNC2G/I GWH09MB-K3DNA8G/I Product Code CB180N01600 CB180N01700 CB173N06700 Front Panel Sub-Assy 2001216804 2001216804 20012200S Display Board 30565054 30565054 3056504301 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 2001213908 2001213908...
  • Page 69 Service Manual Part Code Description GWH09MB-K3DNC9G/I GWH12MB-K3DNC9G/I GWH09MB-K3DNA3G/I Product Code CB145N06000 CB145N06100 CB171N11403 Front Panel Sub-Assy 20012687S 20012687S 20012122S Display Board 30565056 30565056 30565007 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 2012207504 2012207504 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 2001213908 2001213908...
  • Page 70 Service Manual Part Code Description GWH09MB-K3DNB7G/I GWH12MB-K3DNB7G/I GWH12MB-K3DNA3I/I Product Code CB164N03000 CB164N03100 CB171N12900 Front Panel Sub-Assy 20012315S 20012315S 20012548 Display Board 3056506401 3056506401 30565007 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 2012207504 2012207504 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 00000200016 00000200016...
  • Page 71 Service Manual Part Code Description GWH09MB-K3DNC5G/I GWH09MB-K3DNE1G/I GWH12MB-K3DNC5G/I Product Code CB179N04000 CB143N02100 CB179N04100 Front Panel Sub-Assy 20012584S 20012802 20012584S Display Board 3056504301 30565007 3056504301 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 2001213915 2001213933...
  • Page 72 Service Manual Part Code Description GWH09MB-K3DNA5G/I GWH12MB-K3DNA5J/I GWH12MB-K3DNE1G/I Product Code CB162N09901 CB162N10002 CB143N02200 Front Panel Sub-Assy 2001213908 20012199S 20012802 Display Board 30565073 30565073 30565007 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 2001213908 2001213908...
  • Page 73 Service Manual Part Code Description GWH09MB-K3DNC2G/I GWH12MB-K3DNA2I/I GWH12MB-K3DNC2G/I Product Code CB180N01602 CB181N07700 CB180N01702 Front Panel Sub-Assy 2001216804 20012150S 2001216804 Display Board 30565054 30565056 30565054 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 2001213908 20012139...
  • Page 74 Service Manual Part Code Description GWH09MB-K3DNC1G/I GWH12MB-K3DNC1G/I GWH12MB-K3DND3G/I Product Code CB139N06001 CB139N06101 CB405N04500 Front Panel Sub-Assy 150120874 20012464 20012928S Display Board 30565088 30565088 30565145 Filter Sub-Assy 1112220403 1112220403 1112220403 Electric Box Cover2 20122075 20122075 20122075 Screw Cover 24252016 24252016 24252016 Front Case Sub-Assy 00000200016 00000200016...
  • Page 75 Service Manual Part Code Description GWH09MB-K3DNC5G/I Product Code CB179N04002 Front Panel Sub-Assy 20012614 Display Board 3056504301 Filter Sub-Assy 1112220403 Electric Box Cover2 20122075 Screw Cover 24252016 Front Case Sub-Assy 00000200016 Axile Bush 10542036 Guide Louver 10512157 Air Louver 1 10512156 Air Louver 2 10512155 Helicoid tongue...
  • Page 76: Outdoor Unit

    Service Manual 10.2 Outdoor Unit The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 77 Service Manual Part Code Description GWH09MB-K3DNE3G/O GWH12MB-K3DNE3G/O Product Code CB404W03600 CB404W03500 Front Grill 22413008 22413008 Front Panel Assy 0153304801 0153304801 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 02803037P 02803151P Clapboard Sub-Assy 0123338502 0123338502 Drainage Connecter 06123401 06123401 Compressor Gasket 76710302 76710302 4-Way Valve Assy 03073151...
  • Page 78 Service Manual Part Code Description GWH09MB-K3DNE3G/O GWH12MB-K3DNE3G/O Product Code CB404W03601 CB404W03501 Front Grill 22413043 22413043 Front Panel Assy 0153304810 0153304810 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 02803037P 02803151P Clapboard Sub-Assy 0123338502 0123338502 Drainage Connecter 06123401 06123401 Compressor Gasket 76710302 76710302 4-Way Valve Assy 03073151...
  • Page 79: Removal Procedure

    Service Manual 11. Removal Procedure Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Steps Procedure 1. Remove filter Open the panel.
  • Page 80 Service Manual Steps Procedure 3. Remove panel Panel Open the front panel; separate the panel Front panel rotation shaft from the groove fixing the front panel and then removes the front panel. Note: Panel rotation The display of some models is fixed on the panel;...
  • Page 81 Service Manual Steps Procedure 6. Remove vertical louver Loosen the connection clasps between vertical louver and bottom case to remove vertical louver. Bottom case Vertical louver Clasps 7. Remove electric box assy Loosen the connection clasps between shield cover of electric box sub-assy and electric box, and then remove the shield cover of electric box sub-assy.
  • Page 82 Service Manual Steps Procedure Remove two screws fixing display. Note: The display of some models is fixed on the panel; unscrew the screws fixing the display on the panel before removing the Display Screws panel. Screw Remove the screw fixing electric box assy and then remove the electric box assy.
  • Page 83 Service Manual Steps Procedure 9. Remove stepping motor Step motor Screws Remove the screw fixing step motor and then remove the step motor. 10. Remove motor and cross flow blade Remove the screws fixing motor clamp and then remove the motor clamp. Motor clamp Cross flow Remove the screw at the connection...
  • Page 84: Removal Procedure Of Outdoor Unit

    Service Manual 11.2 Removal Procedure of Outdoor Unit Steps Procedure 1.Remove big handle Before disassamble Remove 1 connection screw fixing big Big handle handleand then removethe big handle. 2. Remove top cover Top cover Remove 3 connection screws among top cover plate, front panel and right sideplate.
  • Page 85 Service Manual 3.Remove grille and front panel Remove connection screws between the front grille and the front panel. Then remove the front grille. Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. Grille Panel 4.Remove axial flow blade...
  • Page 86 Service Manual 6.Remove electric box assy Electric box assy Remove the 2 screws fixing the cover of elec- tric box. Lift to remove the cover. Loosen the wire and disconnect the terminal. Lift to re- move the electric box assy. 7.Remove 4-way valve assy Unscrew the fastening nut of the 4-way Valve 4-way Valve Assy...
  • Page 87 Service Manual 9.Remove motor and motor support Motor support Remove the 4 tapping screws fixing the motor. Pull out the lead-out wire and remove the Motor motor. Remove the 2 tapping screws fixing the motor support. Lift motor support to re- move it.
  • Page 88 Service Manual 11.Remove Compressor Remove the 2 screws fixing the gas valve. Unsolder the welding spot connecting gas valve and air return pipe and remove the gas valve. (Note: it is necessary to warp the gas valve when unsoldering the welding spot.) Remove the 2 Liquid valve screws fixing liquid valve.
  • Page 89: Appendix

    Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius( Celsius( Celsius( temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63...
  • Page 90: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...
  • Page 91: 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(15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39...
  • Page 92 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
  • Page 93 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08 580.6...
  • Page 94 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 Email: gree@gree.com.cn Http://www.gree.com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add: Unit 2612,26/F.,Miramar Tower 132 Nathan Road,TST,Kowloon,HK Tel: (852) 31658898 Fax: (852) 31651029...

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