Gree GWH09QB-K3DNA1D Service Manual

Refrigerant: r410a

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Service Manual

Models:

GWH09QB-K3DNA1D

GWH09QB-K3DNA2D

GWH09QB-K3DNA3D

GWH09QB-K3DNA5D

GWH09QB-K3DNA6D

GWH09QB-K3DNB2D

GWH09QB-K3DNB4D

GWH09QB-K3DNB6D

GWH09QB-K3DNB8D

GWH09QB-K3DNC2D

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

GWH09QB-K3DNC4D

GWH09QB-K3DNC6D

GWH09QB-K3DND8D

GWH12QB-K3DNA1D

GWH12QB-K3DNA2D

GWH12QB-K3DNA3D

GWH12QB-K3DNA6D

GWH12QB-K3DNB2D

GWH12QB-K3DNB4D

GWH12QB-K3DNB6D

GWH12QB-K3DNB8D

GWH12QB-K3DNC2D

GWH12QB-K3DNC4D

GWH12QB-K3DNC6D

GWH12QB-K3DND8D

(Refrigerant:R410A)

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Summary of Contents for Gree GWH09QB-K3DNA1D

Page 1 Change for Life Service Manual Models: GWH09QB-K3DNA1D GWH09QB-K3DNC4D GWH12QB-K3DNB8D GWH09QB-K3DNA2D GWH09QB-K3DNC6D GWH12QB-K3DNC2D GWH09QB-K3DNA3D GWH09QB-K3DND8D GWH12QB-K3DNC4D GWH09QB-K3DNA5D GWH12QB-K3DNA1D GWH12QB-K3DNC6D GWH09QB-K3DNA6D GWH12QB-K3DNA2D GWH12QB-K3DND8D GWH09QB-K3DNB2D GWH12QB-K3DNA3D (Refrigerant:R410A) GWH09QB-K3DNB4D GWH12QB-K3DNA6D GWH09QB-K3DNB6D GWH12QB-K3DNB2D GWH09QB-K3DNB8D GWH12QB-K3DNB4D GWH09QB-K3DNC2D GWH12QB-K3DNB6D GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
Page 2 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 ..................8 2.3 Capacity Variation Ratio According to Temperature ............8 2.4 Cooling and Heating Data Sheet in Rated Frequency ............
Page 3 Service Manual 9. Maintenance ......................... 36 9.1 Malfunction Analysis ......................36 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement ........... 40 9.3 How to Check Simply the Main Part ..................49 10. Exploded View and Parts List ..............62 10.1 Indoor Unit .........................
Page 4 Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit: A1 Panel A2 Panel A3 Panel A5 Panel A6 Panel B2 Panel B4 Panel B6 Panel B8 Panel C2 Panel Technical Information...
Page 5 Service Manual C4 Panel C6 Panel Outdoor Unit: GWH09QB-K3DNA6D/O GWH12QB-K3DNA6D/O Remote Controller: YX1F T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE SWING SLEEP TIMER Technical Information...
Page 6 Product Code Model Product Code Model Product Code Controller 1 GWH09QB-K3DNA1D CB419008700 GWH09QB-K3DNA1D/I CB419N08700 2 GWH09QB-K3DNA1D CB419008701 GWH09QB-K3DNA1D/I CB419N08701 3 GWH09QB-K3DNA2D CB426004200 GWH09QB-K3DNA2D/I CB426N04200 4 GWH09QB-K3DNA3D CB424003300 GWH09QB-K3DNA3D/I CB424N03300 5 GWH09QB-K3DNA3D CB424003301 GWH09QB-K3DNA3D/I CB424N03301 6 GWH09QB-K3DNA5D CB425006800 GWH09QB-K3DNA5D/I CB425N06800 7 GWH09QB-K3DNA6D CB427004800 GWH09QB-K3DNA6D/I CB427N04800...
Page 7 Service Manual 2. Specifications 2.1 Specification Sheet 1.GWH09QB-K3DNA1D 2.GWH09QB-K3DNA2D 3.GWH09QB-K3DNA3D 4.GWH09QB-K3DNA5D 5.GWH09QB-K3DNA6D 6.GWH09QB-K3DNB2D Model 7.GWH09QB-K3DNB4D 8.GWH09QB-K3DNB6D 9.GWH09QB-K3DNB8D 10.GWH09QB-K3DNC2D 11.GWH09QB-K3DNC4D 12.GWH09QB-K3DNC6D 13.GWH09QB-K3DND8D 1.CB419008700/CB419008701 2.CB426004200 3.CB424003300/CB424003301 4.CB425006800 5.CB427004800/CB427004801 6.CB432005700/CB432005701 Product Code 7.CB434004500/CB434004501 8.CB435004300 9.CB438003000/CB438003001 10.CB439004900 11.CB444001600/CB444001601 12.CB443000700 13.CB459001100 Rated Voltage 220-240 Power...
Page 8 Service Manual Model of Outdoor Unit GWH09QB-K3DNA6D/O Product Code of Outdoor Unit CB427W04800 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-A091zE190A Compressor Oil 68EP Compressor Type Rotary L.R.A. Compressor RLA Compressor Power Input Overload Protector 1NT11L-6233 Throttling Method Capillary Operation temp 16~30...
Page 9 Service Manual 1.GWH12QB-K3DNA1D 2. GWH12QB-K3DNA2D 3.GWH12QB-K3DNA3D 4. GWH12QB-K3DNA5D 5.GWH12QB-K3DNA6D 6.GWH12QB-K3DNB2D Model 7.GWH12QB-K3DNB4D 8.GWH12QB-K3DNB6D 9.GWH12QB-K3DNB8D 10. GWH12QB-K3DNC2D 11.GWH12QB-K3DNC4D 12.GWH12QB-K3DNC6D 13.GWH12QB-K3DND8D 1.CB419008800/ CB419008801 2. CB426004400 3.CB424003400/ CB424003401 4.CB425007000 5.CB427004700/CB427004701 6.CB432005200/ CB432005201 Product Code 7.CB434004400/CB434004401 8.CB435004400 9.CB438003200/CB438003201 10. CB439005000 11.CB444001500/ CB444001501 12.CB443000900 13.CB459001000 Rated Voltage 220-240 Power...
Page 10 Service Manual Model of Outdoor Unit GWH12QB-K3DNA6D/O Product Code of Outdoor Unit CB427W04700 Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD Compressor Model QXA-B102zE190 Compressor Oil RB68EP Compressor Type Rotary L.R.A. Compressor RLA 4.80 Compressor Power Input 1020 Overload Protector Throttling Method Capillary Operation temp 16~30...
Page 11 Service Manual 2.2 Operation Characteristic Curve Cooling Heating 220V Conditions 220V Indoor:DB27°C/WB19°C Outdoor:DB35°C/WB24°C Indoor air flow:Super High 230V Pipe length:5m 230V 240V Conditions Indoor:DB20°C/WB15°C 240V Outdoor:DB7°C/WB6°C Indoor air flow:Super High Pipe length:5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.3 Capacity Variation Ratio According to Temperature...
Page 12 Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Pressure of gas pipe Inlet and outlet pipe Rated cooling Fan speed Fan speed Compressor connecting indoor temperature of heat condition( C) (DB/WB) Model of indoor of outdoor frequency and outdoor unit exchanger...
Page 13 Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 168.5 159.5 Φ55 Φ55 Unit:mm Models 09/12K Φ55 Φ55 Technical Information...
Page 14 Service Manual 3.2 Outdoor Unit Unit:mm Unit:mm Technical Information...
Page 15 Service Manual 4. Refrigerant System Diagram Cooling and heating model 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 Strainer COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...
Page 16 Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ● Indoor Unit GWH09QB-K3DNA1D/I(CB419N08700) GWH09QB-K3DNA3D/I(CB424N03300) GWH09QB-K3DNA6D/I(CB427N04800) GWH09QB-K3DNB2D/I(CB432N05700) GWH09QB-K3DNB4D/I(CB434N04500) GWH09QB-K3DNB8D/I(CB438N03001) GWH09QB-K3DNC4D/I(CB444N01600) GWH12QB-K3DNA1D/I(CB419N08800) GWH12QB-K3DNA3D/I(CB424N03400) GWH12QB-K3DNA6D/I(CB427N04700) GWH12QB-K3DNB2D/I(CB432N05200) GWH12QB-K3DNB4D/I(CB434N04400) GWH12QB-K3DNB8D/I(CB438N03201) GWH12QB-K3DNC4D/I(CB444N01500) GWH12QB-K3DND8D/I...
Page 17 Service Manual GWH09QB-K3DNA1D/I(CB419N08701) GWH09QB-K3DNA2D/I(CB426N04200) GWH09QB-K3DNA3D/I(CB424N03301) GWH09QB-K3DNA5D/I(CB425N06800) GWH09QB-K3DNA6D/I(CB427N04801) GWH09QB-K3DNB2D/I(CB432N05701) GWH09QB-K3DNB4D/I(CB434N04501) GWH09QB-K3DNB6D/I(CB435N04300) GWH09QB-K3DNB8D/I(CB438N03000) GWH09QB-K3DNC2D/I(CB439N04900) GWH09QB-K3DNC4D/I(CB444N01601) GWH09QB-K3DNC6D/I(CB443N00700) GWH12QB-K3DNA1D/I(CB419N08801) GWH12QB-K3DNA2D/I(CB426N04400) GWH12QB-K3DNA3D/I(CB424N03401) GWH12QB-K3DNA5D/I(CB425N07000) GWH12QB-K3DNA6D/I(CB427N04701) GWH12QB-K3DNB2D/I(CB432N05201) GWH12QB-K3DNB4D/I(CB434N04401) GWH12QB-K3DNB6D/I(CB435N04400) GWH12QB-K3DNB8D/I(CB438N03200) GWH12QB-K3DNC2D/I(CB439N05000) GWH12QB-K3DNC4D/I(CB444N01501) GWH12QB-K3DNC6D/I(CB443N00900) ● Outdoor Unit GWH09QB-K3DNA6D/O 63610000309 Technical Information...
Page 18 Service Manual GWH12QB-K3DNA6D/O 63610000453 These wiring diagrams are subject to change without notice; please refer to the one supplied with the unit. Technical Information...
Page 19 Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name 1 Interface of health function neutral wire 2 Interface of Neutral wire 3 Motor needle stand 4 Interface of health function live wire 5 Jumper cap 6 Auto button 7 Interface of up &...
Page 20 Service Manual Outdoor Unit ● Top view Name Interface of compressor wire Interface of reactor Terminal of power supply live wire terminal Interface of 4-way valve Terminal of power supply neutral wire Grounding wire Live wire Neutral wire Communication wire 10 Overload interface of compressor 11 Interface of temperature sensor ●...
Page 21 Service Manual 6. Function and Control 6.1 Remote Controller Introduction Buttons on Remote Controller ON/OFF button T-ON T-OFF MODE button AUTO SWING COOL SLEEP LOCK SPEED HEAT +/- botton MODE ON/OFF FAN button SWING SWING button SLEEP TIMER SLEEP button TIMER button Icon Display on Remote Controller Timer on Timer off...
Page 22 Service Manual When selecting auto mode, air conditioner will operate automatically according to ex-factory setting. Set temperature can't be adjusted and won't be displayed either. Press FAN button to adjust fan speed. (This function is not available in this air conditioner.) When selecting cool mode, air conditioner will operate under cool mode.
Page 23 Service Manual Replacement of Batteries in Remote Controller battery 1. Press the back side of remote controller on the spot marked with , and then push out the cover of battery box along the arrow direction. 2. Replace two No.7 (AAA 1.5V) dry batteries and make sure the positions of + and -- polar are correct.
Page 24 Service Manual 6.2 Brief Description of Modes and Functions 1. Temperature Parameters Indoor preset temperature (Tpreset) ◆ Indoor ambient temperature (Tamb.) ◆ 2. Basic Functions Once energized, in no case should the compressor be restarted within less than 3 minutes. In the situation that memory function is available, for the first energization, if the compressor is at stop before de-energization, the compressor will be started without a 3-minute lag;...
Page 25 Service Manual ① Working conditions and process of heating If Tamb.≤Tpreset +2 C, the unit enters heating mode, in which case the four-way valve, the compressor and the outdoor fan will operate simultaneously, and the indoor fan will run at preset speed in the condition of preset cold air prevention. If T amb.≥Tpreset +5 C, the compressor will stop, the outdoor fan will stop with a time lag of 30s, and the indoor fan will stop after 60-second blow at low speed...
Page 26 Service Manual ② Protection a. In cooling operation, protection is the same as that under the cooling mode; b. In heating operation, protection is the same as that under the heating mode; c. When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor will remain unchanged for at least 6 minutes.
Page 27 Service Manual Indoor Units (1) ON/OFF Press the remote button ON/OFF: the on-off state will be changed once each time you press the button. (2) Mode Selection Press the remote button MODE, then select and show in the following ways: AUTO, COOL, DRY, FAN, HEAT, AUTO. (3) Temperature Setting Option Button Each time you press the remote button TEMP+ or TEMP-, the setting temperature will be up or down by 1 C.
Page 28 Service Manual Cooling, heating and dehumidify). If you close the light key, all the display patterns will close. ② Double-8 display According to the different setting of remote control, the nixie light may display the current temperature (the temperature scope is from 16 C to 30 C) and indoor ambient temperature.
Page 29 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 30 Service Manual To ensure safety, please be mindful of the following precautions. ●When installing or relocating the unit, be sure to keep the refrigerant circuit free from air or substances other than the specified refrigerant. Any presence of air or other foreign substance in the refrigerant circuit will cause system pressure rise or compressor rupture, resulting in injury.
Page 31 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 32 Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance...
Page 33 Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
Page 34 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 35 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 36 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 Panel...
Page 37 Service Manual 8.6 Installation of Outdoor Unit Refer to the following table for wrench moment of force: Tightening torque(N . m) Hex nut diameter(mm) 1. Fix the Support of Outdoor Unit(Select it According to Φ6 15~20 the Actual Installation Situation) Φ9.52 30~40 (1) Select installation location according to the house structure.
Page 38 Service Manual (3) The water outlet can't be placed in water in order to drain 8.8 Check after Installation and Test smoothly.(As show in Fig.27) Operation 1. Check after Installation Check according to the following requirement after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been...
Page 39 Service Manual 9. Maintenance 9.1 Malfunction Analysis Note: When replacing the controller, be sure to insert the wire jumper into the new controller, otherwise the unit will display C5 Measure insulation resistance The breaker trips at once when it to ground to see if there is any is set to “ON”.
Page 40 Service Manual Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper Check and fill the leakage, then The refrigerant has leakage or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres-...
Page 41 Service Manual Improper set of temperature Adjust set temperature If cooling (heating) load is Check the forecasted load of cooling (heating) proper Check and fill the leakage, then The refrigerant has leakage or is vacuumize it and supplement the re- insufficient frigerant as required Leakage between the high pres-...
Page 42 Service Manual The torque of the swing motor is not enough First, check whether the connection is Wrong connection The swing fan wrong. If no, replace the parts does not run. The controller is damaged(IC2003 is damaged, the swing relay can not close, etc) C o n t r o l l e r m a l f u n c t i o n ( I C 2 0 0 3 Change controller...
Page 43 Service Manual 9.2 Flashing LED of Indoor/Outdoor Unit and Primary Judgement Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF...
Page 44 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
Page 45 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
Page 46 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
Page 47 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
Page 48 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
Page 49 Service Manual Display Method of Indoor Unit Display Method of Outdoor Unit Indicator Display (during Indicator has 3 kinds of display blinking, ON 0.5s and OFF status and during blinking, ON Dual-8 Malfunction A/C status Possible Causes 0.5s) 0.5s and OFF 0.5s Code Name Operation...
Page 50 Service Manual Installation and Maintenance...
Page 51 Service Manual Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation;...
Page 52 Service Manual 9.3 How to Check Simply the Main Part 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 53 Service Manual 2. Malfunction of Blocked Protection of IDU Fan Motor H6 (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main.detection.points: Main detection points: SmoothlyIs.the.control.terminal.of.PG.motor.connected.tightly? ● Is the control terminal of PG motor connected tightly? SmoothlyIs.the.feedback.interface.of.PG.motor.connected.tightly? ● Is 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? ● Detectioncircuit of the mainboard isdefined abnormal? Malfunction diagnosis process: Troubleshooting for C5 malfunction...
Page 55 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? Malfunction diagnosis process: Troubleshooting for U8 malfunction Turn power off for 1minute,the turn back on The unit returns to normal.
Page 56 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: Troubleshooting for...
Page 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64 Service Manual (9) Malfunction of Overcurrent Protection E5 5. Malfunction of Overcurrent Protection Main detection points: Main detection points: ● Is the supply voltage unstable with big fluctuation? Is the supply voltage too low with overload? ● Is the supply voltage too low with overload? Hardware trouble? ●...
Page 65 Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit T-ON T-OFF AUTO SWING COOL SLEEP LOCK SPEED HEAT ON/OFF MODE SWING SLEEP TIMER The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 66 Service Manual Part Code Description GWH09QB-K3DNA6D/I GWH12QB-K3DNA6D/I Product Code CB427N04800 CB427N04700 Front Panel 2002269601S 2002269601S Filter Sub-Assy 11122219 11122219 Display Board 30565265 30565265 Front Case Assy 2002273001 2002273001 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 67 Service Manual Part Code Description GWH09QB-K3DNB4D/I GWH09QB-K3DNB8D/I Product Code CB434N04500 CB438N03000 Front Panel 20000300026T 20000300073T Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 68 Service Manual Part Code Description GWH09QB-K3DNB8D/I GWH09QB-K3DNA6D/I Product Code CB438N03001 CB427N04801 Front Panel 20000300073T 20000300073T Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 69 Service Manual Part Code Description GWH09QB-K3DNA1D/I GWH12QB-K3DNB2D/I Product Code CB419N08700 CB432N05200 Front Panel 20022479S 20000300019S Filter Sub-Assy 11122219 11122219 Display Board 30565263 30565260 Front Case Assy 00000200128 00000200040 Guide Louver 10512722 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037...
Page 70 Service Manual Part Code Description GWH09QB-K3DNA3D/I GWH09QB-K3DNB6D/I Product Code CB424N03300 CB435N04300 Front Panel 2002269701S 20000300050T Filter Sub-Assy 11122219 11122219 Display Board 30565263 30565281 Front Case Assy 00000200119 00000200040 Guide Louver 1051272202 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 71 Service Manual Part Code Description GWH12QB-K3DNA3D/I GWH12QB-K3DNB6D/I Product Code CB424N03400 CB435N04400 Front Panel 2002269701S 20000300050T Filter Sub-Assy 11122219 11122219 Display Board 30565263 30565281 Front Case Assy 00000200119 00000200040 Guide Louver 1051272202 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 72 Service Manual Part Code Description GWH12QB-K3DNA1D/I GWH12QB-K3DNB4D/I Product Code CB419N08800 CB434N04400 Front Panel 20022479S 20000300026T Filter Sub-Assy 11122219 11122219 Display Board 30565263 30565260 Front Case Assy 00000200128 00000200040 Guide Louver 10512722 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 73 Service Manual Part Code Description GWH12QB-K3DNB8D/I GWH12QB-K3DNB8D/I Product Code CB438N03200 CB438N03201 Front Panel 20000300073T 20000300073T Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 74 Service Manual Part Code Description GWH12QB-K3DNA6D/I GWH12QB-K3DNC4D/I Product Code CB427N04701 CB444N01500 Front Panel 2002269601S 20000300105S Filter Sub-Assy 11122219 11122219 Display Board 30565265 30565260 Front Case Assy 2002273001 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 75 Service Manual Part Code Description GWH09QB-K3DNB2D/I GWH09QB-K3DNC4D/I Product Code CB432N05700 CB444N01600 Front Panel 20000300019S 20000300105S Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 76 Service Manual Part Code Description GWH09QB-K3DNA1D/I GWH09QB-K3DNA2D/I Product Code CB419N08701 CB426N04200 Front Panel 20022479S 20022719 Filter Sub-Assy 11122219 11122219 Display Board 30565231 30565265 Front Case Assy 20022495 2002273001 Guide Louver 10512722 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037...
Page 77 Service Manual Part Code Description GWH09QB-K3DNA3D/I GWH09QB-K3DNA5D/I Product Code CB424N03301 CB425N06800 Front Panel 2002269701S 2002267001 Filter Sub-Assy 11122219 11122219 Display Board 30565263 30565270 Front Case Assy 00000200119 2002249501 Guide Louver 1051272202 1051272202 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 78 Service Manual Part Code Description GWH09QB-K3DNB2D/I GWH09QB-K3DNC2D/I Product Code CB432N05701 CB439N04900 Front Panel 20000300019S 20000300068S Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565281 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 79 Service Manual Part Code Description GWH09QB-K3DNC4D/I GWH09QB-K3DNC6D/I Product Code CB444N01601 CB443N00700 Front Panel 20000300105S 20000300101T Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 80 Service Manual Part Code Description GWH12QB-K3DNA1D/I GWH12QB-K3DNA3D/I Product Code CB419N08801 CB424N03401 Front Panel 20022479S 2002269701S Filter Sub-Assy 11122219 11122219 Display Board 30565231 30565263 Front Case Assy 20022495 00000200119 Guide Louver 10512722 1051272202 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 81 Service Manual Part Code Description GWH12QB-K3DNB2D/I GWH12QB-K3DNC4D/I Product Code CB432N05201 CB444N01501 Front Panel 20000300019S 20000300105S Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565260 Front Case Assy 00000200040 00000200040 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 82 Service Manual Part Code Description GWH12QB-K3DNC6D/I GWH12QB-K3DNA2D/I Product Code CB443N00900 CB426N04400 Front Panel 20000300101T 20022719 Filter Sub-Assy 11122219 11122219 Display Board 30565260 30565265 Front Case Assy 00000200040 2002273001 Guide Louver 1051276301 1051276301 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010...
Page 83 Service Manual Part Code Description GWH12QB-K3DNA5D/I GWH12QB-K3DNC2D/I GWH09QB-K3DND8D/I Product Code CB425N07000 CB439N05000 CB459N01100 Front Panel 2002267001 20000300068S 200003000010S Filter Sub-Assy 11122219 11122219 11122219 Display Board 30565270 30565281 300001000035 Front Case Assy 2002249501 00000200040 00000200040 Guide Louver 1051272202 1051276301 1051276301 Helicoid Tongue 26112508 26112508 26112508...
Page 84 Service Manual Part Code Description GWH09QB-K3DNB4D/I GWH12QB-K3DNB4D/I GWH12QB-K3DND8D/I Product Code CB434N04501 CB434N04401 CB459N01000 Front Panel 20000300026T 20000300026T 200003000010S Filter Sub-Assy 11122219 11122219 11122219 Display Board 30565260 30565260 300001000035 Front Case Assy 00000200040 00000200040 00000200040 Guide Louver 1051276301 1051276301 1051276301 Helicoid Tongue 26112508 26112508 26112508...
Page 85 Service Manual 10.2 Outdoor Unit 21 22 25 26 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 86 Service Manual Part Code Description GWH09QB-K3DNA6D/O Product Code CB427W04800 Small Handle 26233100 Supporting Board 01207200061P Motor Support 01703246 Condenser Assy 01100200412 Fan Motor 1501308506 Coping 01253305 Rear Grill 01473079 Clapboard Sub-Assy 0123338502 Compressor and Fittings 0010389603 Compressor Gasket 76710302 4-Way Valve Assy 03073151 Big Handle 2623343106...
Page 87 Service Manual 25 26 The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
Page 88 Service Manual Part Code Description GWH12QB-K3DNA6D/O Product Code CB427W04700 Handle 26233014 Supporting Board 01207200062P Motor Support 0170324701 Condenser Assy 01100200658 Fan Motor 15013085 Coping 01253106P Rear Grill 01473080 Clapboard Sub-Assy 0123316001 Compressor and Fittings 00103364 Compressor Gasket 4-Way Valve Assy 030152000016 Big Handle 2623343106...
Page 89 Service Manual 11. Removal Procedure Caution: discharge the refrigerant 11.1 Removal Procedure of Indoor Unit completely before removal. Step Procedure 1. Remove ﬁ lter assembly Front panel Open the front panel. Push the left ﬁ lter and right ﬁ lter until they are separate from the groove on the front panel.
Page 90 Service Manual Step Procedure 4. Remove electric box cover 2 Screw Electric box cover 2 Remove the screws on the electric box cover 2 to remove the electric box cover 2. 5. Remove front case sub-assy Screws Remove the screws ﬁ xing front case. Note: 1.Open the screw caps before removing the screws around the air outlet.
Page 91 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 ﬁ xing electric box assy . Electric box Shield cover of electric box sub-assy...
Page 92 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 ﬁ rst, hold the circlip and then pull out the terminals.
Page 93 Service Manual Step Procedure 9. Remove motor and cross ﬂ ow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross ﬂ ow 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 94 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. Steps Procedure 1.Remove handle Before disassamble. Remove 1 connection screw fixing handleand then removethe handle.
Page 95 Service Manual Steps Procedure 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.
Page 96 Service Manual Steps Procedure 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 97 Service Manual Steps Procedure 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 98 Service Manual Steps Procedure 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 99 Service Manual Steps Procedure 1. Before disassembly 2. Remove big handle big handle Remove the connection screw fixing the big handle and then remove the big handle. 3. Remove top cover top cover Remove connection screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
Page 100 Service Manual Steps Procedure 4. Remove grille Remove connection screws between the front grille and the front panel. Then remove the grille. grille 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
Page 101 Service Manual Steps Procedure 8. Remove motor and motor support motor support motor Remove the tapping screws fixing the motor and disconnect the leading wire insert of the motor. Then remove the motor. Remove the tapping screws fixing the motor support and lift the motor support to remove it.
Page 102 Service Manual Steps Procedure Remove the 2 screws fixing the gas valve and unsolder the welding joint between the gas valve and the air-return pipe to remove the gas valve. (NOTE: Discharge the refrigerant completely before unsoldering; when unsoldering, wrap the gas valve with a wet cloth completely to avoid damage to the valve caused by high 4-way valve...
Page 103 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 104 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 Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579...
Page 106 Service Manual Resistance Table of Tube Temperature Sensors for Outdoor and Indoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
Page 107 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08...
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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