Cree GWH09QC-D3DNC2D Service Manual

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Change for Life

Service Manual

Models:

GWH09QC-D3DNC2D

GWC12QC-D3DNA1H

GWH12QC-D3DNA1H

GWH12QC-D3DNC2D

GWC12QC-D3DNA6H

GWH12QC-D3DNA6H

GWH12QC-D3DNC8H

GWC12QC-D3DNA5H

GWH12QC-D3DNA5H

GWH12QC-D3DNB6H

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

GWC12QC-D3DNB6H

GWC12QC-D3DND2H

GWC12QC-D3DNB4H

GWH12QC-D3DNB4H

GWC12QC-D3DNC8H

GWH12QC-D3DNC6A

GWC12QC-D3DNC6A

GWC12QC-D3DNA3H

GWC12QC-D3DNB8H

(Refrigerant R410A)

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Summary of Contents for Cree GWH09QC-D3DNC2D

Page 1 Change for Life Service Manual GWC12QC-D3DNB6H Models: GWH09QC-D3DNC2D GWC12QC-D3DND2H GWC12QC-D3DNA1H GWC12QC-D3DNB4H GWH12QC-D3DNA1H GWH12QC-D3DNB4H GWH12QC-D3DNC2D GWC12QC-D3DNC8H GWC12QC-D3DNA6H GWH12QC-D3DNC6A GWH12QC-D3DNA6H GWH12QC-D3DNC8H GWC12QC-D3DNC6A GWC12QC-D3DNA5H GWC12QC-D3DNA3H GWH12QC-D3DNA5H GWC12QC-D3DNB8H GWH12QC-D3DNB6H (Refrigerant R410A) 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 ......................4 2.1 Specification Sheet ......................4 2.2 Operation Characteristic Curve ..................14 2.3 Capacity Variation Ratio According to Temperature ............14 2.4 Cooling and Heating Data Sheet in Rated Frequency ...........15 2.5 Noise Curve ........................15 3.
Page 3 Service Manual 9. Maintenance ......................51 9.1 Error Code List .......................51 9.2 Troubleshooting for Main Malfunction ................52 9.3 Troubleshooting for Normal Malfunction .................65 10. Exploded View and Parts List ..............67 10.1 Indoor Unit ........................67 10.2 Outdoor Unit .........................77 11. Removal Procedure ..................83 11.1 Removal Procedure of Indoor Unit ................83 11.2 Removal Procedure of Outdoor Unit ................88...
Page 4: Part Ⅰ : Technical Information
Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit GWC12QC-D3DNA6H/I GWC12QC-D3DNA1H/I GWH12QC-D3DNA6H/I GWH12QC-D3DNA1H/I GWH12QC-D3DNC8H/I GWH09QC-D3DNC2D/I GWC12QC-D3DNC8H/I GWH12QC-D3DNC2D/I GWC12QC-D3DNA5H/I GWC12QC-D3DNB6H/I GWH12QC-D3DNA5H/I GWH12QC-D3DNB6H/I GWC12QC-D3DNB4H/I GWC12QC-D3DND2H/I GWH12QC-D3DNB4H/I GWH12QC-D3DNC6A/I GWC12QC-D3DNA3H/I GWC12QC-D3DNC6A/I Technical Information...
Page 5 Service Manual GWC12QC-D3DNB8H/I Outdoor Unit GWC12QC-D3DNA6H/O GWH12QC-D3DNA6H/O GWH12QC-D3DNC6A/O GWC12QC-D3DNC6A/O GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O Remote Controller YAN1F1F Technical Information...
Page 6 14 GWH12QC-D3DNB6H CB435006100 GWH12QC-D3DNB6H/I CB435N06100 15 GWH12QC-D3DNC8H CB456000900 GWH12QC-D3DNC8H/I CB456N00900 16 GWH12QC-D3DNB4H CB434007900 GWH12QC-D3DNB4H/I CB434N07900 17 GWH09QC-D3DNC2D CB439005800 GWH09QC-D3DNC2D/I CB439N05800 GWH09QC-D3DNA1D/O CB419W04300 18 GWH12QC-D3DNC2D CB439005600 GWC12QC-D3DND2E/I CB461N00800 GWH12QC-D3DNA1D/O CB419W04500 19 GWH12QC-D3DNC6A CB443002900 GWH12QC-D3DNC6A/I CB443N02900 GWH12QC-D3DNC6A/O CB443W02900 20 GWC12QC-D3DNC6A CB443002800 GWC12QC-D3DNC6A/I CB443N02800 GWC12QC-D3DNC6A/O CB443W02800...
Page 7: Specifications
Service Manual 2. Specifications 2.1 Specification Sheet GWC12QC-D3DNA6H Model GWC12QC-D3DNA3H GWC12QC-D3DNB8H CB427005800 Product Code CB427009700 CB438008500 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3753~12500) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 1300(410~1350) Heating Power Input(Min~Max) Cooling Power Current Heating Power Current Rated Input...
Page 8 Service Manual Model of Outdoor Unit GWC12QC-D3DNA6H/O Outdoor Unit Product Code CB427W05800 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO,LTD. Compressor Model QXA-B102zE190 Compressor Oil RB68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input 1020 Overload Protector Throttling Method Capillary Operation temp...
Page 9 Service Manual 1.GWC12QC-D3DNA5H 2.GWC12QC-D3DNB6H 3.GWC12QC-D3DND2H 4.GWC12QC-D3DNA1H Model 5.GWC12QC-D3DNB4H 6.GWC12QC-D3DNC8H 1.CB425007200 CB425007202 2.CB435006200 3.CB461001001 4.CB419012600 Product Code 5.CB434008000 6.CB456003100 Rated Voltage 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) Btu/h 12000(3753~12500) Heating Capacity(Min~Max) Btu/h Cooling Power Input(Min~Max) 1300(410~1350) Heating Power Input(Min~Max) Cooling Power Current...
Page 10 Service Manual Model of Outdoor Unit GWC12QC-D3DNA6H/O Outdoor Unit Product Code CB427W05800 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO,LTD. Compressor Model QXA-B102zE190 Compressor Oil RB68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input 1020 Overload Protector Throttling Method Capillary Operation temp...
Page 11 Service Manual GWH12QC-D3DNA5H GWH12QC-D3DNB6H GWH12QC-D3DNA1H Model GWH12QC-D3DNA6H GWH12QC-D3DNC8H GWH12QC-D3DNB4H CB425007300 CB435006100 CB419011700 Product Code CB427005900 CB456000900 CB434007900 Rated Voltage 208/230 208/230 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(3924~14000) 13000(3924~14000) Cooling Power Input(Min~Max) 1300(410~1350)
Page 12 Service Manual Model of Outdoor Unit GWH12QC-D3DNA6H/O Outdoor Unit Product Code CB427W05900 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO,LTD. Compressor Model QXA-B102zE190 Compressor Oil RB68EP Compressor Type Rotary Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input 1020 Overload Protector Throttling Method Capillary Operation temp...
Page 13 Service Manual Model GWH09QC-D3DNC2D GWH12QC-D3DNC2D Product Code CB439005800 CB439005600 Rated Voltage 208/230 208/230 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) Btu/h 9000(3100~9600) 12000(3100~13000) Heating Capacity(Min~Max) Btu/h 11000(1911~12000) 13000(2400~14000) Cooling Power Input(Min~Max) 630(160~1300) 960(200~1350) Heating Power Input(Min~Max)
Page 14 Service Manual Model of Outdoor Unit GWH09QC-D3DNA1D/O(LCLH) GWH12QC-D3DNA1D/O(LCLH) Outdoor Unit Product Code CB419W04300 CB419W04500 ZHUHAI GREE DAIKIN DEVICE ZHUHAI GREE DAIKIN DEVICE Compressor Manufacturer/Trademark CO.,LTD CO.,LTD Compressor Model 1GDY23AXD 1GDY23AXD Compressor Oil DAPHNE FVC50K DAPHNE FVC50K Compressor Type Swing Swing Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input...
Page 15 Service Manual Model GWH12QC-D3DNC6A GWC12QC-D3DNC6A Product Code CB443002900 CB443002800 Rated Voltage 208/230 208/230 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 (3924~14000) Cooling Power Input(Min~Max) 1300(410~1350) 1300(410~1350) Heating Power Input(Min~Max) 1250(380~1500) Cooling Power Current...
Page 16 Service Manual Model of Outdoor Unit GWH12QC-D3DNC6A/O GWC12QC-D3DNC6A/O Outdoor Unit Product Code CB443W02900 CB443W02800 ZHUHAI GREE DAIKIN DEVICE ZHUHAI GREE DAIKIN DEVICE Compressor Manufacturer/Trademark CO.,LTD CO.,LTD Compressor Model 1GDY23AXD 1GDY23AXD Compressor Oil DAPHNE FVC50K DAPHNE FVC50K Compressor Type Swing Swing Compressor Locked Rotor Amp (L.R.A) Compressor RLA Compressor Power Input...
Page 17: 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 18: 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 19: 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 3/16 Φ2 3/16 1 3/8 1 3/8 Unit:inch 3 19/64 Technical Information...
Page 20: Outdoor Unit
Service Manual 3.2 Outdoor Unit GWC12QC-D3DNA6H/O GWH12QC-D3DNA6H/O 10 1/8 12 5/8 30 9/16 Unit:inch GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O GWC12QC-D3DNC6A/O GWH12QC-D3DNC6A/O 12 19/32 33 25/64 23 5/16 Unit:inch Technical Information...
Page 21: Refrigerant System Diagram
(evaporator) Suction Accumlator Compressor Heat exchanger Liquid pipe (condenser) side Valve Capillary Strainer Cooling and heating models except GWH09QC-D3DNC2D GWH12QC-D3DNC2D Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator)
Page 22 Service Manual GWH09QC-D3DNC2D GWH12QC-D3DNC2D Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Electric Expand Strainer Valve Fitting COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...
Page 23: 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 24 Service Manual GWH09QC-D3DNC2D/I GWH12QC-D3DNC2D/I 63610000133 ● Outdoor Unit GWC12QC-D3DNA6H/O 6361000044403 Technical Information...
Page 25 Service Manual GWH12QC-D3DNA6H/O 6361000044402 GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O 63610000137 Technical Information...
Page 26 Service Manual GWH12QC-D3DNC6A/O(CB443W02900) GWH12QC-D3DNC6A/O OUTROOM EXHAUST WARNING OUTTUBE 4-WAY Bottom TEMP. TEMP. TEMP. Please don't touch any SENSOR SENSOR Band Heater SENSOR VALVE terminal when the machine is running ,stopping or has been powered off for less than 30 minutes to prevent the risk of electric shock ! (50k) (20k)
Page 27: Pcb Printed Diagram
Service Manual 5.2 PCB Printed Diagram Indoor Unit GWH12QC-D3DNA1H/I GWC12QC-D3DNA6H/I GWH12QC-D3DNA6H/I GWH12QC-D3DNC8H/I GWC12QC-D3DND2H/I GWC12QC-D3DNA5H/I GWC12QC-D3DNB6H/I GWH12QC-D3DNA5H/I GWH12QC-D3DNB6H/I GWH12QC-D3DNB4H/I GWC12QC-D3DNB4H/I GWC12QC-D3DNC8H/I GWC12QC-D3DNC6A/I GWC12QC-D3DNA3H/I ● Top view 4 12 Neutral wire 2 Control interface of PG motor 3 Jumper interface 4 temperature sensor Interface of up and down swing terminal 6 Feedback interface of indoor fan...
Page 28 Service Manual GWH09QC-D3DNC2D/I GWH12QC-D3DNC2D/I ● Top view Neutral wire DC fan Auto button Up&down swing Interface of temperature sensor Interface of wired controller Display interface Terminal with outdoor unit communication wire Interface of live wire Fuse Jumper ● Bottom view...
Page 29 Service Manual GWC12QC-D3DNA6H/O GWH12QC-D3DNA6H/O GWH12QC-D3DNC6A/O GWC12QC-D3DNC6A/O Outdoor Unit ● 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...
Page 30 Service Manual GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O Outdoor Unit Top view 14 15 Bottom view Technical Information...
Page 31: 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 32 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 33 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 34 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 35: Brief Description Of Modes And Functions
Service Manual 6.2 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 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 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 connection pipe is not yet connected, air will be sucked in and cause pressure rise or compressor rupture, resulting in injury. ●Prohibit installing the unit at the place where there may be leaked corrosive gas or flammable gas. If there leaked gas around the unit, it may cause explosion and other accidents.
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 Uint:inch 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 8.4 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 50 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 51 Indoor power cord to the wiring terminal; tighten the screw and then fix the power connection wire with wire clip.(As show in Fig.13) Note: All models except:GWH09QC-D3DNC2D/I GWH12QC-D3DNC2D/I (1) The power cord and control wire cant be crossed or N(1) winding.
Page 52: Installation Of Outdoor Unit
Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: Hex nut diameter Tightening torque(ft·Ibf) 1. Fix the Support of Outdoor Unit(Select it according to Φ1/4 11.10~14.75 the actual installation situation) Φ3/8 22.12~29.50 (1) Select installation location according to the house structure.
Page 53: Vacuum Pumping And Leak Detection
Service Manual Note: 8.8 Check after Installation and Test (1) The through-wall height of drain hose shouldnt be higher Operation than the outlet pipe hole of indoor unit.(As show in Fig.25) (2) Slant the drain hose slightly downwards. The drain hose 1.
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: Troubleshooting For Main Malfunction
Service Manual 9.2 Troubleshooting for Main Malfunction ●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 ●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 60 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 61 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 62 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 63 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 64 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 65 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 66 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 67 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 68: 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 69 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 70: 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 71 Service Manual Part Code Description GWC12QC-D3DNA6H/I GWH12QC-D3DNA6H/I GWC12QC-D3DNC6A/I Product Code CB427N05800 CB427N05900 CB443N02800 Front Panel 2002266101S 2002266101S 2002247401 Filter Sub-Assy 11122468 11122468 11122468 Display Board 30565265 30565265 30565260 Front Case Assy 2002273101 2002273101 00000200045 Guide Louver 1051293101 1051293101 1051293101 Helicoid Tongue 26112436 26112436 26112436...
Page 72 Service Manual Part Code Description GWH09QC-D3DNC2D/I GWH12QC-D3DNC2D/I GWH12QC-D3DNC6A/I Product Code CB439N05800 CB439N05600 CB443N02900 Front Panel 20000300069S 20000300069S 2002247401 Filter Sub-Assy 11122468 11122468 11122468 Display Board 30565281 30565281 30565260 Front Case Assy 00000200045 00000200045 00000200045 Guide Louver 1051293101 1051293101 1051293101 Helicoid Tongue...
Page 73 Service Manual Part Code Description GWH12QC-D3DNA1H/I GWH12QC-D3DNC8H/I Product Code CB419N11700 CB456N00900 Front Panel 20022475S 20000300154T Filter Sub-Assy 11122468 11122468 Display Board 30565231 30565281 Front Case Assy 20022489 00000200045 Guide Louver 10512492 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
Page 74 Service Manual Part Code Description GWC12QC-D3DNA5H/I GWH12QC-D3DNA5H/I Product Code CB425N07200 CB425N07300 Front Panel 2002269402S 2002269402S Filter Sub-Assy 11122468 11122468 Display Board 30565276 30565276 Front Case Assy 00000200022 00000200022 Guide Louver 1051249202 1051249202 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
Page 75 Service Manual Part Code Description GWC12QC-D3DNB6H/I GWH12QC-D3DNB6H/I Product Code CB435N06200 CB435N06100 Front Panel 20000300049T 20000300049T Filter Sub-Assy 11122468 11122468 Display Board 30565281 30565281 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
Page 76 Service Manual Part Code Description GWC12QC-D3DND2H/I GWC12QC-D3DNA1H/I Product Code CB461N01001 CB419N12600 Front Panel 20000300000701 20022475S Filter Sub-Assy 1112246801 11122468 Display Board 30565308 30565231 Front Case Assy 000002000007 20022489 Guide Louver 1051293102 10512492 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
Page 77 Service Manual Part Code Description GWH12QC-D3DNB4H/I GWC12QC-D3DNB4H/I Product Code CB434N07900 CB434N08000 Front Panel 20000300027T 20000300027T Filter Sub-Assy 11122468 11122468 Display Board 30565260 30565260 Front Case Assy 00000200045 00000200045 Guide Louver 1051293101 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
Page 78 Service Manual Part Code Description GWC12QC-D3DNA5H/I GWC12QC-D3DNC8H/I Product Code CB425N07202 CB456N03100 Front Panel 2002269402S 20000300154T Filter Sub-Assy 11122468 11122468 Display Board 30565263 30565281 Front Case Assy 00000200109 00000200045 Guide Louver 1051249202 1051293101 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093...
Page 79 Service Manual Part Code Description GWC12QC-D3DNA3H/I GWC12QC-D3DNB8H/I Product Code CB427N09700 CB438N08500 Front Panel 2002269301 20000300074T Filter Sub-Assy 11122468 11122468 Display Board 30565263 30565260 Front Case Assy 2002278301 00000200045 Guide Louver 1051249201 1051293101 Helicoid Tongue 2611243601 26112436 Left Axile Bush 1051203702 10512037 Rear Case assy 0000010009301...
Page 80: Outdoor Unit
Service Manual 10.2 Outdoor Unit GWC12QC-D3DNA6H/O GWC12QC-D3DNC6A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 81 Service Manual Part Code Description GWC12QC-D3DNA6H/O GWC12QC-D3DNC6A/O Product Code CB427W05800 CB443W02800 Front Grill 01473012 01473012 Front Panel Assy 0153304804 0000030001504 Axial Flow Fan 10333004 10333004 Fan Motor 1501306723 1501306723 Chassis Sub-assy 017000000057P 02803187P Compressor Gasket 76710287 76713027 Compressor and fittings 00103364 00103892 Valve Support...
Page 82 Service Manual GWH12QC-D3DNA6H/O GWH12QC-D3DNC6A/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 83 Service Manual Part Code Description GWH12QC-D3DNA6H/O GWH12QC-D3DNC6A/O Product Code CB427W05900 CB443W02900 Front Grill 01473012 01473012 Front Panel Assy 0153304804 0000030001504 Axial Flow Fan 10333004 10333004 Chassis Sub-assy 017000000057P 01700000081P Clapboard Sub-Assy 0123338502 0123338502 Drainage Connecter 06123401 06123401 Compressor Gasket 76710287 76713027 4-Way Valve Assy 030152000094...
Page 84 Service Manual GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 85 Service Manual Part Code Description GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O Product Code CB419W04300 CB419W04500 Front Grill 01473012 01473012 Cabinet 0143305801P 0153501604 Axial Flow Fan 10333004 10333004 Fan Motor 1501308505 1501308505 Electrical Heater 76510010 76510010 Chassis Sub-assy 0120380601P 0120380601P Drainage Connecter 06123401 06123401 Electrical Heater(Compressor) 76513004 76513004 Compressor and Fittings...
Page 86: 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 A6 panel for an example. Step Procedure 1.
Page 87 Service Manual Step Procedure 4. Remove electric box cover2 Screw Electric box cover2 Remove the screws on the electric box cover 2 to remove the electric box cover. 5. Remove front case sub-assy Screws Remove the screws fixing front case. Note: 1.Open the screw caps before removing the screws around the air outlet.
Page 88 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 89 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 90 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 91: 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. GWC12QC-D3DNA6H/O GWH12QC-D3DNA6H/O NOTE: Take heat pump for example. Steps Procedure 1.Remove cable cross plate 2...
Page 92 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 93 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 94 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 95 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 96 Service Manual Models: GWH09QC-D3DNA1D/O GWH12QC-D3DNA1D/O Steps Procedure 1.Remove cable cross plate sub-assy and valve cover cable cross plate sub-assy Remove the screws fixing cable cross plate sub-assy and then remove the cable cross plate sub-assy. Remove the screws fixing valve cover and then remove the valve cover.
Page 97 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 98 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 99 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 100: 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 101: 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 102: 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 103 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 104 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 105 JF00302835 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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