Gree GWC09QC-A3DNA3D Service Manual

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Change for Life

Service Manual

Models: GWC09QC-A3DNA3D

GWC09QC-A3DNA5D

GWH09QC-A3DNA3D

GWH09QC-A3DNA5D

GWH09QC-A3DNB2D

GWC12QC-A3DNA1D

GWC12QC-A3DNA5D

GWH12QC-A3DNA1D

GWH12QC-A3DNA3D

GWH12QC-A3DNA5D

GWH12QC-A3DNB2D

GWH12QC-A3DNB8D

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

GWH09QC-A3DNB8D

GWH09QC-A3DNA1D

GWH12QC-A3DNA1D

GWH09QC-A3DNC2D

GWH12QC-A3DNC2D

(Refrigerant R410A)

Table of Contents

Troubleshooting

Summary of Contents for Gree GWC09QC-A3DNA3D

Page 1 Change for Life Service Manual Models: GWC09QC-A3DNA3D GWH09QC-A3DNB8D GWC09QC-A3DNA5D GWH09QC-A3DNA1D GWH09QC-A3DNA3D GWH12QC-A3DNA1D GWH09QC-A3DNA5D GWH09QC-A3DNC2D GWH09QC-A3DNB2D GWH12QC-A3DNC2D GWC12QC-A3DNA1D (Refrigerant R410A) GWC12QC-A3DNA5D GWH12QC-A3DNA1D GWH12QC-A3DNA3D GWH12QC-A3DNA5D GWH12QC-A3DNB2D GWH12QC-A3DNB8D GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
Page 2: Table Of Contents
..................19 6.1 Remote Controller Introduction of YV1FB7F ..............19 6.2 Remote Controller Introduction of YAN1F1F ..............23 6.3 GREE+ App Operation Manual ..................27 6.4 Ewpe Smart App Operation Manual ................28 6.5 Brief Description of Modes and Functions ..............29 Part Ⅱ : Installation and Maintenance ..........38...
Page 3 Service Manual 9. Maintenance ......................48 9.1 Error Code List .......................48 9.2 Troubleshooting for Main Malfunction ................49 9.3 Troubleshooting for Normal Malfunction .................63 10. Exploded View and Parts List ..............65 10.1 Indoor Unit ........................65 10.2 Outdoor Unit .........................75 11. Removal Procedure ..................79 11.1 Removal Procedure of Indoor Unit ................79 11.2 Removal Procedure of Outdoor Unit ................84...
Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit GWC09QC-A3DNA3D/I(LC) GWC12QC-A3DNA1D/I(LC) GWH09QC-A3DNA3D/I(LCLH) GWH12QC-A3DNA1D/I(LCLH) GWH12QC-A3DNA3D/I(LCLH) GWC09QC-A3DNA5D/I(LC) GWH09QC-A3DNB2D/I(LC) GWC12QC-A3DNA5D/I(LC) GWH12QC-A3DNB2D/I(LCLH) GWH09QC-A3DNA5D/I(LCLH) GWH12QC-A3DNA5D/I(LCLH) GWH12QC-A3DNB8D/I GWH09QC-A3DNA1D/I GWH09QC-A3DNB8D/I GWH12QC-A3DNA1D/I GWH09QC-A3DNC2D/I GWH12QC-A3DNC2D/I Outdoor Unit GWC09QC-A3DNA1D/O(LC) GWH09QC-A3DNA1D/O(LCLH) GWH12QC-A3DNA1D/O(LCLH) GWC12QC-A3DNA1D/O(LC) Technical Information...
Page 5 Indoor product Outdoor Remote Model Product code Indoor model Outdoor model code product code Controller GWC09QC-A3DNA3D CB424001800 GWC09QC-A3DNA3D/I CB424N01800 YAN1F1F GWC09QC-A3DNA1D/O CB419W03800 GWC09QC-A3DNA5D CB425005600 GWC09QC-A3DNA5D/I CB425N05600 YV1FB7F GWH09QC-A3DNB2D CB432001201 GWH09QC-A3DNB2D/I CB432N01201 YAN1F1F GWH09QC-A3DNA5D CB425004001 GWH09QC-A3DNA5D/I CB425N04001 YV1FB7F GWH09QC-A3DNA3D CB424001900 CB424N01900...
Page 6: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet GWH09QC-A3DNA3D(LCLH) Model GWC09QC-A3DNA3D(LC) GWH09QC-A3DNB8D(LCLH) CB424001900/CB424001902 Product Code CB424001800 CB438002601 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 9900(2081~13989) Cooling Power Input(Min~Max)
Page 7 Service Manual Model of Outdoor Unit GWC09QC-A3DNA1D/O(LC) GWH09QC-A3DNA1D/O(LCLH) Outdoor Unit Product Code CB419W03800 CB419W03900 ZHUHAI GREE DAKIN DEVICE 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...
Page 8 Service Manual GWH09QC-A3DNA5D(LCLH) GWH09QC-A3DNB2D(LCLH) Model GWC09QC-A3DNA5D(LC) GWH09QC-A3DNA1D(LCLH) GWH09QC-A3DNC2D(LCLH) CB425004001 CB432001201 Product Code CB425005600 CB419003902 CB439006401 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 9900(2081~13989) Cooling Power Input(Min~Max) 700(100~1270) 700(100~1270) Heating Power Input(Min~Max) 930(140~1200)
Page 9 Service Manual Model of Outdoor Unit GWC09QC-A3DNA1D/O(LC) GWH09QC-A3DNA1D/O(LCLH) Outdoor Unit Product Code CB419W03800 CB419W03900 ZHUHAI GREE DAKIN DEVICE 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...
Page 10 Service Manual GWC12QC-A3DNA1D(LC) Model GWC12QC-A3DNA5D(LC) CB419004001 Product Code CB425005500 Rated Voltage Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3100~13000) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 923(200~1350) Heating Power Input(Min~Max) Cooling Power Current 4.50 Heating Power Current Rated Input 1350 Rated Current...
Page 11 Service Manual Model of Outdoor Unit GWC12QC-A3DNA1D/O(LC) Outdoor Unit Product Code CB419W04000 Compressor Manufacturer/Trademark ZHUHAI GREE DAKIN DEVICE CO.,LTD. Compressor Model QXA-A091zE190 Compressor Oil FVC68D or RB 68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA 12.5 Compressor Power Input...
Page 12 Service Manual GWH12QC-A3DNA1D(LCLH) GWH12QC-A3DNA5D(LCLH) GWH12QC-A3DNB2D(LCLH) Model GWH12QC-A3DNA3D(LCLH) GWH12QC-A3DNB8D(LCLH) GWH12QC-A3DNA1D(LCLH) GWH12QC-A3DNC2D(LCLH) CB419004101 CB425004101 CB432001902 Product Code CB424001700/CB424001702 CB438002901 CB419004103 CB439006501 Rated Voltage Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3514~14569) 12000(3514~14569) Heating Capacity(Min~Max) Btu/h 12000(2764~16582) 12000(2764~16582) Cooling Power Input(Min~Max) 960(170~1300)
Page 13 Service Manual Model of Outdoor Unit GWH12QC-A3DNA1D/O(LCLH) Outdoor Unit Product Code CB419W04100 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 12.5 Compressor Power Input Overload Protector 1NT11L-6233 or KSD115 C or HPC115/95U1...
Page 14: Operation Characteristic Curve
Service Manual 2.2 Operation Characteristic Curve Cooling Heating 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 15: 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 16: Outline Dimension Diagram
Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 8 7/32 33 1/4 4 43/64 21 21/64 7 1/4 Φ2 1/6 Φ2 1/6 1 3/8 1 3/8 Unit:inch 3 19/64 3.2 Outdoor Unit 12 5/8 33 3/8 21 1/4 Unit:inch Technical Information...
Page 17: Refrigerant System Diagram
Service Manual 4. Refrigerant System Diagram Cooling only models Indoor unit Outdoor unit Gas pipe side Valve Di s charge Heat exchanger (evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Electron Strainer expansion valve Cooling and heating models Indoor unit Outdoor unit Gas pipe...
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 GWC09QC-A3DNA1D/O(LC) GWC12QC-A3DNA1D/O(LC) N(1) N(1) 63610000130 GWH09QC-A3DNA1D/O(LCLH) GWH12QC-A3DNA1D/O(LCLH) N(1) N(1) 63610000131 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 Neutral wire DC fan Auto button Up&down swing Interface of wired controller Needle stand for indoor ambient temperature sensor/ tube temperature sensor Display interface Needle stand for WiFi Jumper interface Interface of communication wire for indoor unit and outdoor unit...
Page 21 Service Manual Outdoor Unit ● Top view 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 22: Function And Control
Service Manual 6. Function and Control 6.1 Remote Controller Introduction of YV1FB7F ON/OFF button ▲ button MODE button SWING button button FAN button TIMER OFF button CLOCK button TIMER ON button SLEEP button TEMP button TURBO button X-FAN button I FEEL button button Introduction for icons on display screen Set fan speed...
Page 23 Service Manual HEAT AUTO COOL Technical Information...
Page 24 Service Manual Combination "MODE" and "TURBO" buttons About WIFI function Press "MODE" and "TURBO" button simultaneously to turn on or turn off WIFI function. When WIFI function is turned on, the " " WIFI icon will be displayed on remote controller; Long press "MODE" and "TURBO" buttons simultaneously for 10s, remote controller will send WIFI reset code and then the WIFI function will be turned on.
Page 25 Service Manual Technical Information...
Page 26: Remote Controller Introduction Of Yan1F1F
Service Manual 6.2 Remote Controller Introduction of YAN1F1F ON/OFF button MODE button WIFI 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 27 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 28 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 29 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 ex-factory setting to reach to the best energy-saving effect.
Page 30: 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 31: Ewpe Smart App Operation Manual
Service Manual 6.4 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 User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...
Page 32: Brief Description Of Modes And Functions
Service Manual 6.5 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 33 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 34 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 35 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 36 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 37 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 38 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 39 Service Manual (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesn’t 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 40 Service Manual 6. Electric Heating Function of Chassis (1) When Toutdoor amb.≤32ºF , the electric heating of chassis will operate; (2) When Toutdoor amb.>35.6ºF , the electric heating of chassis will stop operation; (3)When 32ºF <Toutdoor amb.≤35.6ºF, the electric heating of chassis will keep original status. 7.
Page 41: 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 42 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 43 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 44: 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 45 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 46: Installation Parts-Checking
Service Manual 8.4 Requirements for Electric Connection 8.2 Installation Parts-checking 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 power supply circuit and air switch.
Page 47 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 48 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 49: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: 1. Fix the Support of Outdoor Unit(Select it according to Hex nut diameter(inch) Tightening torque(ft·Ibf) the actual installation situation) Φ1/4 11.10~14.75 Φ3/8 22.82~29.50 (1) Select installation location according to the house structure.
Page 50: Vacuum Pumping And Leak Detection
Service Manual 2. Leakage Detection Note: (1) With leakage detector: (1) The through-wall height of drain hose shouldn't 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 51: 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 52: Troubleshooting For Main Malfunction
Service Manual 9.2 Troubleshooting for Main Malfunction . Malfunction of Temperature Sensor F1, F2 ●Indoor unit: Main.detection.points: 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 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 53 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 54 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 55 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 56 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 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64 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 65 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 66: 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 67 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 make sure all wiring terminals are connected connection diagram firmly...
Page 68: Exploded View And Parts List
Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit MODE ON/OFF SWING TIMER ON CLOCK TIMER OFF TURBO TEMP SLEEP X-FAN IFEEL The component picture is only for reference please refer to the actual product. Installation and Maintenance...
Page 69 Service Manual Part Code Description GWC09QC-A3DNA3D/I GWH09QC-A3DNA3D/I Product Code CB424N01800 CB424N01900 Front Panel 2002269301 2002269301 Display Board 30565263 30565263 Filter Sub-Assy 11122468 11122468 Front Case Assy 2002278301 2002278301 Helicoid Tongue 2611243601 2611243601 Left Axile Bush 1051203702 1051203702 Rear Case assy...
Page 70 Service Manual Part Code Description GWC09QC-A3DNA5D/I GWH09QC-A3DNA5D/I Product Code CB425N05600 CB425N04001 Front Panel Assy 2002269402 2002269402 Display Board 30565260 30565260 Filter Sub-Assy 11122468 11122468 Front Case Assy 00000200022 00000200022 Helicoid Tongue 26112436 2611243601 Left Axile Bush 10512037 1051203702 Rear Case assy 00000100093 0000010009301 Drainage Hose...
Page 71 Service Manual Part Code Description GWH09QC-A3DNB2D/I GWH12QC-A3DNB2D/I Product Code CB432N01201 CB432N01902 Front Panel 20000300018 20000300018 Display Board 30565260 30565260 Filter Sub-Assy 11122468 11122468 Front Case Assy 00000200045 00000200045 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose...
Page 72 Service Manual Part Code Description GWH12QC-A3DNB8D/I GWH12QC-A3DNA5D/I Product Code CB438N02901 CB425N04101 Front Panel 20000300074T 2002269402 Display Board 30565260 30565260 Filter Sub-Assy 11122468 11122468 Front Case Assy 00000200045 00000200022 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose...
Page 73 Service Manual Part Code Description GWC12QC-A3DNA1D/I GWH12QC-A3DNA1D/I Product Code CB419N04001 CB419N04101 Front Panel Assy 20022493 20022493 Display Board 30565231 30565231 Filter Sub-Assy 11122468 11122468 Front Case Assy 20022489 20022489 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose...
Page 74 Service Manual Part Code Description GWH09QC-A3DNB8D/I GWC12QC-A3DNA5D/I GWH12QC-A3DNA3D/I Product Code CB438N02601 CB425N05500 CB424N01700 Front Panel 20000300074T 00000300022 2002269201 Display Board 30565260 30565260 30565263 Filter Sub-Assy 11122468 11122468 11122468 Front Case Assy 00000200045 00000200022 2002278301 Helicoid Tongue 26112436 26112436 2611243601 Left Axile Bush 10512037 10512037 1051203702...
Page 75 Service Manual Part Code Description GWH09QC-A3DNA1D/I GWH12QC-A3DNA1D/I Product Code CB419N03902 CB419N04103 Front Panel Assy 20022475S 20022475S Display Board 30565263 30565263 Filter Sub-Assy 11122468 11122468 Front Case Assy 00000200165 00000200165 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose...
Page 76 Service Manual Part Code Description GWH09QC-A3DNC2D/I GWH12QC-A3DNC2D/I Product Code CB439N06401 CB439N06501 Front Panel Assy 20000300069S 20000300069S Display Board 30565281 30565281 Filter Sub-Assy 11122468 11122468 Front Case Assy 00000200045 00000200045 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose...
Page 77 Service Manual Part Code Description GWH09QC-A3DNA3D/I GWH12QC-A3DNA3D/I Product Code CB424N01902 CB424N01702 Front Panel Assy 2002269301 2002269301 Display Board 30565263 30565263 Filter Sub-Assy 11122468 11122468 Front Case Assy 00000200109 00000200109 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose...
Page 78: Outdoor Unit
Service Manual 10.2 Outdoor Unit Cooling only models The component picture is only for reference please refer to the actual product. Installation and Maintenance...
Page 79 Service Manual Part Code Description GWC09QC-A3DNA1D/O GWC12QC-A3DNA1D/O Product Code CB419W03800 CB419W04000 Front Grill 01473012 01473012 Cabinet 0143305801P 0153501604 Axial Flow Fan 10333004 10333004 Fan Motor 1501308505 1501308505 Chassis Sub-assy 0120388102P 0120388102P Compressor Gasket 76710302 76710302 Electrical Heater(Compressor) 76510009 76510009 Compressor and fittings 00103862 00103862 Electric Expansion Valve Sub-Assy...
Page 80 Service Manual Cooling and heating models The component picture is only for reference please refer to the actual product. Installation and Maintenance...
Page 81 Service Manual Part Code Description GWH09QC-A3DNA1D/O GWH12QC-A3DNA1D/O Product Code CB419W03900 CB419W04100 Front Grill 01473012 01473012 Cabinet 0143305801P 0153501201 Axial Flow Fan 10333004 10333004 Fan Motor 1501308505 1501308505 Electrical Heater 76510010 76510010 Chassis Sub-assy 01203881P 01203881P Drainage Connecter 06123401 06123401 Electrical Heater(Compressor) 76510009 76510009 Compressor and Fittings...
Page 82: 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 Take A1 panel for example Step Procedure 1.
Page 83 Service Manual Step Procedure 4. Remove electric box cover 2 and detecting plate(WIFI) 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). Screw Note:the position of detection board(WIFI) may be different for different models.
Page 84 Service Manual Step Procedure 7. 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 cover of electric box sub-assy. Remove the screw fixing electric box assy . Electric box Shield cover of electric box sub-assy...
Page 85 Service Manual Step 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 86 Service Manual Step Procedure 9. 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 87: 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 heating pump for example. Steps Procedure 1.Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy...
Page 88 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 89 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 90 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 91: 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 （℉）...
Page 92: 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 93: 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 94 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 95 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 96 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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