Gree GWC09QB-A3DNA5E Service Manual
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Gree GWC09QB-A3DNA5E Service Manual

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Change for Life
Service Manual
Models: GWC09QB-A3DNA5E
GWC09QB-A3DNB8E
GWH09QB-A3DNA5E
GWH09QB-A3DNB2E
GWH09QB-A3DNB8E
GWH12QC-A3DNC8E
GWC12QC-A3DNA5E
GWC12QC-A3DNA5K
GWC12QC-A3DNB8E
GWH12QC-A3DNA5E
GWH12QC-A3DNA5K
GWH12QC-A3DNB2E
GWH12QC-A3DNB8E
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
GWH12QC-A3DNB2K
GWC12QC-A3DNB2K
GWH12QC-A3DNC2E
GWC12QC-A3DNC8E
GWH12QC-A3DNB8K
GWH09QB-A3DNB8K
GWH09QB-A3DNC2E
GWC12QC-A3DND8K
GWC12QC-D3DNC8H
(Refrigerant R410A)

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Summary of Contents for Gree GWC09QB-A3DNA5E

  • Page 1 Change for Life Service Manual Models: GWC09QB-A3DNA5E GWH12QC-A3DNB2K GWC09QB-A3DNB8E GWC12QC-A3DNB2K GWH09QB-A3DNA5E GWH12QC-A3DNC2E GWH09QB-A3DNB2E GWC12QC-A3DNC8E GWH09QB-A3DNB8E GWH12QC-A3DNB8K GWH12QC-A3DNC8E GWH09QB-A3DNB8K GWC12QC-A3DNA5E GWH09QB-A3DNC2E GWC12QC-A3DNA5K GWC12QC-A3DND8K GWC12QC-A3DNB8E GWC12QC-D3DNC8H GWH12QC-A3DNA5E (Refrigerant R410A) GWH12QC-A3DNA5K GWH12QC-A3DNB2E GWH12QC-A3DNB8E GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...

  • Page 2: Table Of Contents

    5.2 PCB Printed Diagram .....................23 6. Function and Control ..................26 6.1 Remote Controller Introduction ..................26 6.2 GREE+ App Operation Manual ..................30 6.3 Ewpe Smart App Operation Manual ................31 6.4 Brief Description of Modes and Functions ..............32 Part Ⅱ : Installation and Maintenance ..........41...
  • Page 3 Service Manual 9. Maintenance ......................51 9.1 Error Code List .......................51 9.2 Procedure of Troubleshooting ..................52 9.3 Troubleshooting for Normal Malfunction .................68 10. Exploded View and Parts List ..............70 10.1 Indoor Unit ........................70 10.2 Outdoor Unit .........................81 11. Removal Procedure ..................91 11.1 Removal Procedure of Indoor Unit ................91 11.2 Removal Procedure of Outdoor Unit ................96 Appendix:...

  • Page 4: Part Ⅰ : Technical Information

    Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit GWC09QB-A3DNA5E/I GWH09QB-A3DNA5E/I GWC12QC-A3DNA5E/I GWH12QC-A3DNA5E/I GWC12QC-A3DNA5K/I GWH12QC-A3DNA5K/I GWH09QB-A3DNB2E/I GWH12QC-A3DNB2E/I GWH12QC-A3DNB2K/I GWC12QC-A3DNB2K/I GWC09QB-A3DNB8E/I GWH09QB-A3DNB8E/I GWC12QC-A3DNB8E/I GWH12QC-A3DNB8E/I GWH09QB-A3DNB8K/I GWH12QC-A3DNB8K/I GWH12QC-A3DNC8E/I GWC12QC-A3DNC8E/I GWC12QC-D3DNC8H/I GWH09QB-A3DNC2E/I GWH12QC-A3DNC2E/I GWC12QC-A3DND8K/I Technical Information...
  • Page 5 GWC12QC-A3DNA6E/O GWH12QC-A3DNA6E/O GWC12QC-A3DNA5K/O GWH12QC-A3DNA5K/O GWC12QC-D3DNA6H/O Remote Controller YAN1F1F Model List: Indoor product Outdoor product Model Product code Indoor model Outdoor model code code GWC09QB-A3DNA5E CB425006500 GWC09QB-A3DNA5E/I CB425N06500 GWC09QB-A3DNA6E/O(LC) CB427W04000 GWC09QB-A3DNB8E CB438003801 GWC09QB-A3DNB8E/I CB438N03801 GWH09QB-A3DNA5E CB425006400 GWH09QB-A3DNA5E/I CB425N06400 GWH09QB-A3DNB8E CB438003702 GWH09QB-A3DNB8E/I...

  • Page 6: Specifications

    Service Manual 2. Specifications 2.1 Specification Sheet Model GWC09QB-A3DNA5E GWC09QB-A3DNB8E Product Code CB425006500 CB438003801 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9000(2764~10918) 9000(2764~10918) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 823(350~1270) 823(350~1270) Heating Power Input(Min~Max) Cooling Power Current 10.93...
  • Page 7 Service Manual Model of Outdoor Unit GWC09QB-A3DNA6E/O(LC) Outdoor Unit Product Code CB427W04000 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.62 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1 Throttling Method...
  • Page 8 Service Manual GWH09QB-A3DNA5E GWH09QB-A3DNB8E Model GWH09QB-A3DNC2E GWH09QB-A3DNB2E CB425006400 CB438003702 Product Code CB439006001 CB432006002 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9000(2764~10918) 9000(2764~10918) Heating Capacity(Min~Max) Btu/h 9600(2081~12263) 9600(2081~12263) Cooling Power Input(Min~Max) 895(350~1270) 895(350~1270) Heating Power Input(Min~Max) 852(280~1250) 852(280~1250)
  • Page 9 Service Manual Model of Outdoor Unit GWH09QB-A3DNA6E/O(LCLH) Outdoor Unit Product Code CB427W03900 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.62 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115ºC or HPC115/95U1 Throttling Method...
  • Page 10 Service Manual GWH12QC-A3DNA5E GWC12QC-A3DNA5E GWH12QC-A3DNB2E Model GWC12QC-A3DNB8E GWH12QC-A3DNB8E GWH12QC-A3DNC8E GWC12QC-A3DNC8E GWH12QC-A3DNC2E CB425006300 CB432006102 CB425006201 CB438004001 Product Code CB438003902 CB456002400 CB456002901 CB439006201 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3753~12500) 12000(3753~12500) Heating Capacity(Min~Max) Btu/h 13000(3412~15013) Cooling Power Input(Min~Max)
  • Page 11 Service Manual Model of Outdoor Unit GWC12QC-A3DNA6E/O(LC) GWH12QC-A3DNA1D/O(LCLH) Outdoor Unit Product Code CB427W03800 CB427W03700 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO.,LTD CO.,LTD Compressor Model QXA-A091zE190 QXA-A091zE190 Compressor Oil FVC68D or RB 68EP FVC68D or RB 68EP Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A)
  • Page 12 Service Manual GWC12QC-A3DNA5K GWH12QC-A3DNA5K Model GWC12QC-A3DNB2K GWH12QC-A3DNB2K GWC12QC-A3DND8K GWH12QC-A3DNB8K CB425007800 CB425007900 Product Code CB432008900 CB432009100 CB459003900 CB438008200 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3753~12500) 12000(3753~12500) Heating Capacity(Min~Max) Btu/h 13000(3412~15013) Cooling Power Input(Min~Max) 1155(380~1300) 1193(380~1300) Heating Power Input(Min~Max)
  • Page 13 Service Manual Model of Outdoor Unit GWC12QC-A3DNA5K/O(LC) GWH12QC-A3DNA5K/O(LCLH) Outdoor Unit Product Code CB425W07800 CB425W07900 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO.,LTD CO.,LTD Compressor Model QXA-A091zE190 QXA-A091zE190 Compressor Oil FVC68D or RB 68EP FVC68D or RB 68EP Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A)
  • Page 14 Service Manual Model GWH09QB-A3DNB8K GWC12QC-D3DNC8H Product Code CB438008000 CB456003101 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9000 12000(3753~12500) Heating Capacity(Min~Max) Btu/h 9500 Cooling Power Input(Min~Max) 1300(410~1350) Heating Power Input(Min~Max) Cooling Power Current 10.87 Heating Power Current 10.36...
  • Page 15 Service Manual Model of Outdoor Unit GWH09QB-A3DNA5K/O GWC12QC-D3DNA6H/O Outdoor Unit Product Code CB425W08200 CB427W05800 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer/Trademark CO.,LTD CO,LTD. Compressor Model QXA-A091zE190 QXA-B102zE190 Compressor Oil FVC68D or RB 68EP RB68EP Compressor Type Rotary Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.62 Compressor Power Input...

  • Page 16: Operation Characteristic Curve

    Service Manual 2.2 Operation Characteristic Curve Heating Cooling 220V 220V • Conditions Indoor : DB80˚F/WB66.9˚F Outdoor : DB95˚F Indoor air flow : High Pipe lengt : 24.6ft 230V 230V 240V • Conditions Indoor : DB70˚F/WB60˚F 240V Outdoor : DB19.94˚F/WB19.04˚F Indoor air flow : High Pipe lengt : 24.6ft Compressor frequency(Hz) Compressor frequency(Hz)

  • Page 17: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Compressor connecting indoor and temperature of heat Fan speed of Fan speed of condition(°F) (DB/WB) Model revolution outdoor unit exchanger indoor unit outdoor unit...

  • Page 18: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 4 7/8 21 5/16 7 1/16 6 5/8 18 1/4 6 1/4 4 7/8 21 5/16 7 1/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 Φ2 3/16 1 3/8 1 3/8 2 1/8 2 1/8...

  • Page 19: Outdoor Unit

    Service Manual 3.2 Outdoor Unit 12 5/8 33 3/8 21 1/4 Unit:inch Technical Information...

  • Page 20: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram Cooling unit except :GWC12QC-A3DNA5K Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Capillary Strainer Cooling and heating unit except :GWH12QC-A3DNA5K Outdoor unit Indoor unit Gas pipe...
  • Page 21 Service Manual GWC12QC-A3DNA5K Outdoor unit Indoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Heat Compressor exchanger (condenser) Liquid pipe side Valve Electron Strainer expansion valve COOLING GWH12QC-A3DNA5K Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge...

  • Page 22: 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 23 Service Manual ● Outdoor Unit GWC09QB-A3DNA6E/O GWC12QC-A3DNA6E/O Please don't touch any electronic component and terminal when the machine is running , stopping or has been powered off for less than 30 minutes to prevent electric shock ! N(1) ground Motor NOTE: only applies to the...
  • Page 24 Service Manual GWC12QC-A3DNA5K/O N(1) 60000700084301 GWH12QC-A3DNA5K/O GWH09QB-A3DNA5K/O N(1) 600007000843 Technical Information...
  • Page 25 Service Manual GWC12QC-D3DNA6H/O 6361000044403 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...

  • Page 26: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit Top view Name Interface of communication wire for indoor unit and outdoor unit 2 Interface of live wire Interface of health function neutral wire 4 Interface of neutral wire 5 Interface of fan 6 Interface of health function live wire 7 Jumper cap 8 Auto button...
  • Page 27 Service Manual All models is except：GWC12QC-D3DNC8H(CB456003101) Outdoor Unit Name Name Name Compressor output port Live wire 17 Terminal of outdoor fan Connection wire between boards of Connect the negative pole of external Master control chip neutral wire connects AC-N4 big electrolytic capacitor Connection wire between boards of Connect the positive pole of external Overload temperature of compressor 11...
  • Page 28 Service Manual GWC12QC-D3DNC8H(CB456003101) ● Top view 1 Interface of indoor fan 2 Interface of electric heating belt 3 Interface of 4-way valve Interface of electronic expansion valve 5 Interface of earthing wire 6 Interface of live wire 7 Interface of neutral wire Interface of communication wire for indoor fan and outdoor Overload interface of...

  • Page 29: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction ON/OFF button MODE button FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button I FEEL button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel Send signal...
  • Page 30 Service Manual 1. ON/OFF button Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator " "on indoor units display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound. 2.
  • Page 31 Service Manual 7. SLEEP button Under COOL, HEAT or DRY mode, press this button to start up sleep function. " " icon is displayed on remote controller. Press this button again to cancel sleep function and " " icon will disappear. 8.
  • Page 32 Service Manual Function introduction for combination buttons 1. Energy-saving function Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to factory setting to reach to the best energy-saving effect.

  • Page 33: Gree+ App Operation Manual

    GREE+ App Download Linkage 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 34: Ewpe Smart App Operation Manual

    Service Manual 6.3 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Cellular/ Home Wi-Fi home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for Users smart phone: iOS system Android system Support iOS7.0 and Support Android 4.0 and above version above version...

  • Page 35: Brief Description Of Modes And Functions

    Service Manual 6.4 Brief Description of Modes and Functions Indoor Unit ● 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 60.8~86.0 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 36 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 60.8 F.
  • Page 37 Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
  • Page 38 Service Manual 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
  • Page 39 Service Manual 1. Starting estimation: After the compressor stopped working for 180s, if T > [T (the temperature of hysteresis is 35.6ºF )], inner pipe frozen-preventing frequency-limited temperature the machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 40 Service Manual 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 41 Service Manual (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 42 Service Manual (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesnt shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
  • Page 43 Service Manual 6. Electric Heating Function of Chassis (1) When T ≤32ºF , the electric heating of chassis will operate; outdoor amb. (2) When T >35.6ºF , the electric heating of chassis will stop operation; outdoor amb. (3)When 32ºF <T ≤35.6ºF, the electric heating of chassis will keep original status.

  • Page 44: 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 45 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 refrigerant circuit free from air or substances other than the specified refrigerant.
  • Page 46 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 47: Installation

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 5 7/8 inch At least 5 7/8 inch Drainage pipe Installation and Maintenance...
  • Page 48 Service Manual 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 49: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking 8.4 Requirements 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 50 Service Manual 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 51: Installation Of Outdoor Unit

    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 for installation when binding them.
  • Page 52 Service Manual Note: 5. Connect Outdoor Electric Wire (1) Take sufficient protective measures when installing the (1) Put power connection wire and power wire through the wire- outdoor unit. -passing hole. (2) Make sure the support can withstand at least four times the (2) Remove the wire clip;...

  • Page 53: Vacuum Pumping And Leak Detection

    Service Manual 2. Leakage Detection Note: (1) With leakage detector: (1) The through-wall height of drain hose shouldnt be higher Check if there is leakage with leakage detector. than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) With soap water: (2) Slant the drain hose slightly downwards.

  • Page 54: Maintenance

    Service Manual 9. Maintenance 9.1 Error Code List Display of lamp (the times of blinking) Display of Name of malfunction Indoor Outdoor indoor unit Anti-freezing protection Block or Low pressure of refrigerant system Compressor exhaust high temperature protection AC over-current protection Communication failure between indoor unit and outdoor unit Anti-high temperature protection No feedback of indoor fan motor...

  • Page 55: 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 56 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 cant operate? ●...
  • Page 57 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 58 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 59 Service Manual 4. Communication malfunction E6 Start Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram. Main board matches Match correctly with display board? Main board of Malfunction eliminated?
  • Page 60 Service Manual 5. Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 61 Service Manual ●Outdoor unit: (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: ●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Turn on the unit...
  • Page 62 Service Manual (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: ●Is the connection between control panel AP1 and compressor COMP secure? Loose? Is the connection in correct order? ●Is the voltage input of the machine within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) ●Is the compressor coil resistance normal? Is the insulation of compressor coil against the copper tube in good condition? ●Is the working load of the machine too high? Is the radiation good?
  • Page 63 Service Manual Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within a period of time?
  • Page 64 Service Manual (3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is outdoor ambient temperature in normal range? ●Are the outdoor and indoor fans operating normally? ●Is the heat dissipation environment inside and outside the unit good? Fault diagnosis process: Overheat and high temperature protection...
  • Page 65 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 66 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 in Out of step occurs once the operation unit is powered on.
  • Page 67 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 68 Service Manual (7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Fault diagnosis process: Start Check wiring of the...
  • Page 69 Service Manual (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit mainboard 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 70 Service Manual (9) 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 Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...

  • Page 71: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery.
  • Page 72 Service Manual 4. ODU Fan Motor Cant 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 make sure all wiring terminals are connected connection diagram firmly...

  • Page 73: Exploded View And Parts List

    Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 74 Service Manual Part Code Description GWC09QB-A3DNA5E/I GWH09QB-A3DNA5E/I Product Code CB425N06500 CB425N06400 Front Panel 2002267001 2002267001 Front Case 2002248001 2002248001 Axile Bush 10542036 10542036 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260 Rear Case assy 00000100066...
  • Page 75 Service Manual Part Code Description GWC12QC-A3DNA5E/I GWH12QC-A3DNA5E/I Product Code CB425N06201 CB425N06300 Front Panel 2002269402 2002269402 Front Case 2002247401 2002247401 Axile Bush 10542036 10542036 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260 Rear Case assy 00000100093 00000100093 Rubber Plug (Water Tray) 76712012...
  • Page 76 Service Manual Part Code Description GWC09QB-A3DNB8E/I GWH09QB-A3DNB8E/I Product Code CB438N03801 CB438N03702 Front Panel 20000300073T 20000300073T Front Case 2002248001 2002248001 Axile Bush 10542036 10542036 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260 Rear Case assy 00000100066 00000100066 Rubber Plug (Water Tray) 76712012...
  • Page 77 Service Manual Part Code Description GWC12QC-A3DNB8E/I GWH12QC-A3DNB8E/I Product Code CB438N04001 CB438N03902 Front Panel 20000300074T 20000300074T Front Case 2002247401 2002247401 Axile Bush 10542036 10542036 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260 Rear Case assy 00000100093 00000100093 Rubber Plug (Water Tray) 76712012...
  • Page 78 Service Manual Part Code Description GWC12QC-A3DNA5K/I GWH12QC-A3DNA5K/I Product Code CB425N07800 CB425N07900 Front Panel 2002269402S 2002269402S Front Case 00000200022 00000200022 Axile Bush 10542036 10542036 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260 Rear Case assy 00000100093 00000100093 Rubber Plug (Water Tray) 76712012...
  • Page 79 Service Manual Part Code Description GWH09QB-A3DNB2E/I GWH12QC-A3DNB2E/I Product Code CB432N06002 CB432N06102 Front Panel 20000300019S 20000300018S Front Case 2002248001 2002247401 Axile Bush 10542036 10542036 Helicoid Tongue 26112508 26112436 Left Axile Bush 10512037 10512037 Display Board 30565260 30565260 Rear Case assy 00000100066 00000100093 Rubber Plug (Water Tray) 76712012...
  • Page 80 Service Manual Part Code Description GWH12QC-A3DNC8E/I GWH12QC-A3DNB2K/I GWC12QC-A3DNB2K/I Product Code CB456N02400 CB432N09100 CB432N08900 Front Panel 20000300154T 20000300018 20000300018 Front Case 00000200045 00000200045 00000200045 Axile Bush 10542036 10542036 10542036 Helicoid Tongue 26112436 26112436 26112436 Left Axile Bush 10512037 10512037 10512037 Display Board 30565281 30565260 30565260...
  • Page 81 Service Manual Part Code Description GWH09QB-A3DNB8K/I GWH09QB-A3DNC2E/I Product Code CB438N08000 CB439N06001 Front Panel 20000300073T 20000300068S Front Case 2002248001 2002248001 Axile Bush 10542036 10542036 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Display Board 30565260 30565281 Rear Case assy 00000100066 00000100066 Rubber Plug (Water Tray) 76712012...
  • Page 82 Service Manual Part Code Description GWH12QC-A3DNC2E/I GWC12QC-A3DNC8E/I GWH12QC-A3DNB8K/I Product Code CB439N06201 CB456N02901 CB438N08200 Front Panel 20000300069S 20000300154T 20000300074T Front Case 00000200045 2002247401 2002247401 Axile Bush 10542036 10542036 10542036 Helicoid Tongue 26112436 26112436 26112436 Left Axile Bush 10512037 10512037 10512037 Display Board 30565281 30565281 30565260...
  • Page 83 Service Manual Part Code Description GWC12QC-A3DND8K/I GWC12QC-D3DNC8H/I Product Code CB459N03900 CB456N03101 Front Panel 200003000003S 20000300154T Front Case 2002247401 2002247401 Axile Bush 10542036 10542036 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Display Board 300001000035 30565281 Rear Case assy 00000100093 00000100093 Rubber Plug (Water Tray) 76712012...

  • Page 84: Outdoor Unit

    Service Manual 10.2 Outdoor Unit GWC09QB-A3DNA6E/O GWC12QC-A3DNA6E/O The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 85 Service Manual Part Code Description GWC09QB-A3DNA6E/O GWC12QC-A3DNA6E/O Product Code CB427W04000 CB427W03800 Front Grill 01473012 01473012 Cabinet 0143305801P 0143305801P Axial Flow Fan 10333004 10333004 Fan Motor 1501308507 1501308507 Chassis Sub-assy 0120388106P 0120388104P Compressor Gasket 76710302 76710302 Electrical Heater(Compressor) Compressor and fittings 00103862 00103862 Capillary Sub-assy...
  • Page 86 Service Manual GWC12QC-D3DNA6H/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 87 Service Manual Part Code Description GWC12QC-D3DNA6H/O Product Code CB427W05800 Front Grill 01473012 Front Panel Assy 0153304804 Axial Flow Fan 10333004 Fan Motor 1501306723 Chassis Sub-assy 017000000057P Compressor Gasket 76710287 Compressor and fittings 00103364 Valve Support 0171314201P Cut off Valve Assy 07133474 Valve Support Block 26113017...
  • Page 88 Service Manual GWC12QC-A3DNA5K/O The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 89 Service Manual Part Code Description GWC12QC-A3DNA5K/O Product Code CB425W07800 Front Grill 01473012 Cabinet 0143305801P Axial Flow Fan 10333004 Fan Motor 1501308507 Chassis Sub-assy 0120388104P Compressor Gasket 76710302 Electrical Heater(Compressor) Compressor and fittings 00103862 Electric Expansion Valve Sub-Assy 030026000185 Valve cover 2012300101 Valve 07100005...
  • Page 90 Service Manual GWH09QB-A3DNA6E/O GWH12QC-A3DNA6E/O The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 91 Service Manual Part Code Description GWH09QB-A3DNA6E/O GWH12QC-A3DNA6E/O Product Code CB427W03900 CB427W03700 Front Grill 01473012 01473012 Cabinet 0143305801P 0143305801P Electrical heater (Chassis) 76510010 76510010 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 0120388105P 0120388103P Compressor Gasket 76710302 76710302 Drainage Connecter 06123401 06123401 00180030 00180030 Overload Protector...
  • Page 92 Service Manual GWH12QC-A3DNA5K/O GWH09QB-A3DNA5K/O The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 93 Service Manual Part Code Description GWH12QC-A3DNA5K/O GWH09QB-A3DNA5K/O Product Code CB425W07900 CB425W08200 Front Grill 01473012 01473012 Cabinet 0143305801P 0143305801P Electrical heater (Chassis) 76510010 76510010 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 0120388103P 0120388105P Compressor Gasket 76710302 76710302 Drainage Connecter 06123401 06123401 00180030 Overload Protector 00183031...

  • Page 94: 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 NOTE: Take A5 panel for an example. Step Procedure 1.
  • Page 95 Service Manual Step Procedure 4. Remove electric box cover 2 and detecting plate(WIFI) Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and Detecting plate(WIFI) detecting plate(WIFI). Note:the position of detection board(WIFI) may be different for different models.
  • Page 96 Service Manual Steps Procedure 7. Remove vertical louver Loosen the connection clasps between vertical louver and bottom case to remove Bottom case vertical louver. Vertical louver Vertical Clasps louver 8. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield...
  • Page 97 Service Manual Steps Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. Circlip The pulling method is as below: Holder ① Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
  • Page 98 Service Manual Steps Procedure 10. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...

  • Page 99: Removal Procedure Of Outdoor Unit

    Service Manual 11.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. NOTE: Take GWH12QC-A3DNA6E/O for example. Steps Procedure 1.Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy...
  • Page 100 Service Manual Steps Procedure 4.Remove front panel front panel Remove connection screws connecting the front panel with the chassis and the motor support, and then remove the front panel. 5.Remove right side plate Remove connection screws connecting the right side plate right side plate with the valve support and the electric box.
  • Page 101 Service Manual Steps Procedure 7.Remove motor and motor support motor support tor Pull out the lead-out wire and remove themotor. Remove the 2 tapping screws re-move it. motor 8.Remove electric box assy electric box assy Remove the 2 screws fixing the cover of elec-tric box.
  • Page 102 Service Manual Steps Procedure 10.Remove 4-way valve assy 4-way valve assy Unscrew the fastening nut of the 4-way Valve Assy coil and remove the coil. Wrap the 4-way Valve Assy with wet cotton and unsolderthe 4 weld spots connecting the 4-way Valve Assy to take it out(Note: Refrig- erant shouldbe discharged firstly.) Welding processshould be as quickly as possible and...

  • Page 103: 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 104: 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 105: 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.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711 210.2 1.039 121.6...
  • Page 106 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1 71.6 22.85 141.8 4.773 1.346 153.3 73.4...
  • Page 107 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor(50K) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) Temp.( Resistance(kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36...
  • Page 108 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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