Gree GWH09RA-K3DNA1B Service Manual Download

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GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

Service Manual

Change for Life

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Summary of Contents for GWH09RA-K3DNA1B

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Page 5: ... repair work shall be performed by your dea ler or a specialized subcontractor as there is the risk of fire electric shock explosion or injury Have all wiring connected tightly Loose connection may lead to overheating and a possible fire hazard Make sure the outdoor unit is installed on a stable level surface with no accumulation of snow leaves or trash beside Make sure the ceiling wall is strong ...

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Page 14: ...e 230V Compressor Speed rps Cooling Heating Current A Current A 50 60 70 80 90 100 110 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 Capacity ratio Condition Indoor DB27 WB19 Indoor air flow Turbo Pipe length 5m Outdoor temp C 0 20 40 60 80 100 120 Capacity ratio Outdoor temp C g n i t a e H g n i l o o C 09K 12K 09K 12K 7 5 0 5 10 Condition Indoor DB20 Indoor air flow Turbo Pipe length 5m 2SHUDWLR...

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Page 17: ... RQVWUXFWLRQ 9LHZV 2XWGRRU 8QLW 8QLW PP 257 320 776 540 712 510 286 ...

Page 18: ...JHUDQW 6 VWHP LDJUDP 5HIULJHUDQW SLSH GLDPHWHU LTXLG PP DV PP T I N U R O O D T U O T I N U R O O D N I HEAT EXCHANGER EVAPORATOR COOLING HEATING HEAT EXCHANGER EVAPORATOR Strainer Strainer Capillary Accumlator Compressor 4 Way valve ...

Page 19: ...ACK YEGN YELLOW GREEN WH WHITE ELECTRONIC EXPANSION VALVE EKV OHFWULFDO DWD QGRRU 8QLW L OUT L1 L1 0 0 RT1 RT2 M JUMP CAP TEM SENSOR ROOM TUBE TEM SENSOR FAN MOTOR SWING MOTOR U D AP2 SWING UD K4 TUBE ROOM AC L PG PGF DISP 1 DISP 2 CN2 CN1 AP1 DISPLAY 13 GENERATOR COOLPLASMA M PE XT1 W1BU W3BN N 1 OUTDOOR UNIT 2 3 COM OUT W4YEGN N W2BK BU YEGN BN L N POWER RD BU YEGN HEALTH N HEALTH L PE EVAPORATO...

Page 20: ...BU OUTDOORUNIT YEGN BN BK W2 COM OUT W7 CN3 CN1 XT SAT REACTOR SUB ASSY CLAPBOARD L4 L4 L4 EH1 HEATER COMP BAND M 0 1 2 0 1 2 M ELECTRICAL BOX OVERLOARD YEGN PE L2 L2 L3 N 1 XT 3 2 BOTTOMBAND HEATER COMP BAND HEATER EH2 EH1 HEAT N2 HEAT L HEAT N1 TEMP TEMP TEMP MOTOR L3 L1 L1 W24 BN W23 AC L4 AC L5 W2 BU AC N3 COMU PROTECTOR OVC COMP RD W22 LX1 1 LX1 2 AC L2 AC L3 BN W21 PE W V U L2 W20 W19 RD W18...

Page 21: ...TOR SAT BN BK BU INDOOR UNIT BK BU BN N AC L PE U V W DISCHARGE ROOM SENSOR TUBE SENSOR SENSOR 0 RT1 0 RT2 RT3 0 CN2 4V N1 AC L1 L FAN OFAN COMP COMP AC N1 RD YE BU YEGN YEGN YEGN PE BU BN BU BN PE PE YEGN 4YV BU AC N2 AP1 AP2 AC L AC N W3 W1 W5 W6 W9 W10 W11 W12 W13 W14 W15 W16 BU W17 YE W18 RD W19 W20 L2 U V W PE W21 BN AC L3 AC L2 LX1 2 LX1 1 W22 RD OVC COMP PROTECTOR COMU AC N3 BU W2 AC L5 AC ...

Page 22: ...e Port of indoor fan Solid state relay Auto button Feedback of indoor fan Port of motor for vertical swing Port of motor for horizontal swing Buzzer Port of indoor ambient temp sensor Port of indoor pipe temp sensor Port of display Main chip Communication port High frequency transformer Power of switch Protective tube ...

Page 23: ...9 Ɣ 27720 9 2XWQGRRU XQLW inductance pin1 inductance pin2 fan neilsbed four way valve compressor electric heater chassis e ectric heater compressor temp sensor overload protection electric expansion valve 10 core communication cable ...

Page 24: ... 2 0 1 2 Ɣ 723 9 Ɣ 27720 9 inductance pin1 inductance pin2 fan four way valve compressor electric heater chassis e ectric heater compressor temp sensor overload protection electric expansion valve communication cable low pressure valve ...

Page 25: ...timer TURBO LIGHT Press it to turn on off the light X FAN 2 3 15 5 4 14 7 16 13 12 9 8 11 10 2 1 6 17 22 23 25 24 18 19 20 21 19 18 21 20 17 MODE icon If MODE button is pressed current operation mode icon AUTO COOL DRY FAN or HEAT only for heat pumpmodels will show SLEEP icon is displayed by pressing the SLEEP button Press this button again to clear the display LIGHT icon is displayed by pressing ...

Page 26: ...Press this button again to clear the display 8 Heating icon is displayed when Pressing TEMP and CLOCK simultaneously in Heat mode Remote Controller Description ON OFF Press this button to turn on the unit Press this button again to turn off the unit Press this button to decrease set temperature Hold it down for above 2 seconds to rapidly decrease set temperature In AUTO mode set temperature is not...

Page 27: ...he time value Every press of either button changes the time setting by 1 minute Hold down either button to rapidly change the time setting by 1 minute and then 10 minutes Within 5 seconds after setting press TIMER ON button to confirm CLOCK Press CLOCK button blinking Within 5 seconds pressing or button adjusts the present time Hold down either button for above 2 seconds to increase or decrease th...

Page 28: ... the old batteries 3 Insert two new AAA1 5V dry batteries and pay attention to the polarity 4 Reinstall the battery cover plate Notes When replacing the batteries do not use old or different types of batteries otherwise it may cause malfunction If the remote controller will not be used for a long time please remove batteries to prevent batteries from leaking The operation should be performed in it...

Page 29: ... Tpreset COOL mode will act the compressor and outdoor fan will run and the indoor fan will run at the set speed If Tamb Tpreset 2 the compressor will stop the outdoor fan will delay 30 seconds to stop and the indoor fan will run at the set speed If Tpreset 2 Tamb Tpreset the unit will keep running in the previous mode In this mode the reversal valve will not be powered on and the temperature sett...

Page 30: ...outdoor fan will delay 30sec to stop and indoor fan will blow 60S at low speed the fan speed cannot be shifted within blow residual heat In this mode the temperature setting range is 16 30 The air conditioner will adjust the running frequency of the compressor automatically according to the change of ambient temperature When the unit is turned off in HEAT mode or switched to other mode from HEAT m...

Page 31: ...occurs six times in succession the compressor will not be started again Overload protection If temperature sensed by the overload sensor is over 115 the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below 95 the overload protection will be relieved If voltage on the DC bus is below 150V or over 420V the compressor will stop and the outdoor fan w...

Page 32: ...ter 2 hours so it reduce 2 in 2 hours then it will run on at the setting temperature and wind speed c The setting temperature keeps the same under the FAN mode and AUTO mode 6 Indoor Fan Control 7 Buzzer Control The buzzer will send a Di sound when the air conditioner is powered up or received the information sent by the remote control or there is a button input the single tube cooler doesn t rece...

Page 33: ...ontinuously measured failure in 30S after the compressor operated 3 minutes H3 Overload protection of compressor H5 Module protection PH High voltage protection PL Low voltage protection P1 Nominal cooling and heating test P2 Maximum cooling and heating test P3 Medium cooling and heating test P0 Minimum cooling and heating test 12 Drying Function You may start or stop the drying function under the...

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Page 36: ...let side Space to the floor Above Above Above Above Above 15 cm Space to the obstruction Air outlet side Space to the wall Air inlet side Above 30 cm Above 50 cm A 50 cm bove The dimensions of the space necessary for proper installation of the appliance include the minimum permissible distances to adjacent structures 15 cm 15 cm 300 cm cm 250 30 cm ...

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Page 50: ...e contact firm Fuse of controller burnt out The air condi tioner does not react after it is powered after the plug is inserted the buzzer does not sound and the remote startup has no response Remote controller malfunction Receiver loose or poor connection Receiver is broken Change controller fuse Controller is broken Check remote controller Remote controller is short of power Change batteries Firs...

Page 51: ...ion for the thick and thin pipes is good Heat insulation must also be provided for the joint andthe exposed part of the copper pipe Block of outdoor heat ex changer Clean the dust accumulated on the surface of the heat exchanger Air filter were blocked Clean the filter Fan speed was set too slow To set the fan speed to high or middle speed Air circulation is insufficient Fan rotation speed becomes...

Page 52: ...stat is recommended Wrong wire connection Connect the circuit diagram correctly The built in heat protector of the motor breaks frequently because the motor is abnormal Replace the fan motor Adjust the volume of the refrigerant The refrigerant is not enough or is too much Replace the capillary The capillary is blocked and the tem perature rises The compressor does not run smoothly or is stuck The ...

Page 53: ...or Drainage pipe blocked or broken Change drainage pipe Re wrap and make it tight Wrap of refrigerant pipe joint is not close enough Water leakage Change controller Wire loose or wrong connection In cool heat mode the outdoor unit and compres sor will not run Correctly wire according to the drawing Improper setting of temperature Adjust setting temp Controller malfunction IC2003 broken creepage of...

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Page 57: ... or use DC voltmeter to measure the voltage on the two ends of capacitor until the voltage is lower than 20V Check the connection of reactor L in the Electrical Wiring Diagram If the wiring of reactor Lis normal Connect the reactor L according to Electrical Wiring Diagram Re energize and turn on the unit If the fault is eliminated End Replace the control panel AP1 correctly 1 Capacitor charge faul...

Page 58: ...m pressure is too high 5 Other conditions resulting in that the system pressure becomes too high The connection of capacitor C2 is loose Stop the unit and disconnect the power supply Then check the connection of capacitor C2 according to Electrical Wiring Diagram Reconnect the capacitor C2 according to Electrical Wiring Diagram Then energize and start the unit Remove the wires on the two ends of c...

Page 59: ... unit Does the outdoor fan work normally 1 Check if the fan terminal OFAN is connected correctly 2 Resistance between any two terminals is measure by an ohm gauge and should be less than 1K Ohm Replace the control panel Replace the fan capacitor C1 Replace the outdoor fan 3 High temperature and overload protection diagnosis AP1 here in after refers to the control board of the outdoor unit Mainly d...

Page 60: ...mpressor connected correctly Is connection sequence right Connect the wires as per the connection diagram Replace the control panel AP1 If the fault is eliminated Replace the compressor End Mainly detect Whether the compressor wiring is connected correct Is time for compressor stopping enough Is compressor broken 4 Start up failure following AP1 for outdoor unit control board ...

Page 61: ...e compressor End Out of step occurs in operation Is the outdoor fan working normally Is the outdoor unit blocked by foreign objects Replace the control panel AP1 If the fault is eliminated Replace the compressor End Check if the fan terminal OFAN is connected correctly Remove foreign objects Replace the fan capacitor C1 Replace the outdoor fan 5 Out of step diagnosis for the compressor AP1 hereuna...

Page 62: ... terminal hole and the fifth pin are almost the same less than 100 ohm Replace the PMV If the fault is eliminated If the fault is eliminated Replace the control panel AP1 Coolant leakage refilling the coolant End 6 Overload and air exhaust malfuntion diagnosis following AP1 for outdoor unit unit control board Mainly detect Wether the PMV is connected well or not Is PMV damaged Is refrigerant leake...

Page 63: ... resistance around zero The capacitor is short circuited and the capacitor should be replaced Restart the unit If the fault is eliminated Disconnect the terminals for the reactor and measure the resistance between the two terminals of the reactor by an ohmmeter Whether there is any damage or short circuit Replace the reactor Restart the unit If the fault is eliminated Replace the control panel AP1...

Page 64: ...P1 of the outdoor unit If the fault is eliminated Is the connection right Check the wiring of the indoor and outdoor units with reference to the wiring diagram Correctly connect the corresponding wires for the indoor and outdoor units with reference to the wiring diagram 8 Communication malfunction following AP1 for outdoor unit control board Mainly detect Detect the indoor and outdoor units conne...

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Page 67: ...tes after turning off all power supplies before disassembly 1 2 3 1 Before disassembly of the unit 2 Remove filter and horizontal louver Open the panel Loosen clasps on filter and then remove the filter Remove axial bush on horizontal louver and bend the horizontal louver slightly to remove it filter horizontal louver ...

Page 68: ...Remove screws on display and then remove the display Quit the rotation shaft of panel from groove and then remove the panel 4 Remove electric box cover 2 Remove screws connecting electric box cover 2 and front case and then remove the electric box cover 2 screw rotation shaft screw display ...

Page 69: ...t case and bottom case Open screw cover by hand remove other 3 screws loosen clasps connecting front case and bottom case and then remove the front case 6 Remove swing blade Remove 10 clasps connecting swing blade and bottom case Remove swing blade screw clasp clasp swing blade ...

Page 70: ... the electric box 8 Remove evaporator Turn over bottom case remove screws connecting pipe clamp and bottom case loosen clasps between connecting pipe clamp and bottom case and then remove the connecting pipe clamp Remove screws connecting evaporator and motor press plate and bottom case loosen clasps fixing evaporator and bottom case adjust the pipeline and then remove the evaporator indoor temper...

Page 71: ...ove cross flow blade and motor Remove screws on stepping motor and then remove the stepping motor Remove 4 screws connecting motor press plate and bottom case and then remove motor press plate Remove cross flow blade and motor Remove shaft rubber cushion block Remove screws connecting cross flow blade and motor shaft and then remove motor ...

Page 72: ...rning off all power supplies before disassembly 1 2 Handle 2 Top panel 1 Remove big handle Before disassembly Remove 1 connection screw fixing big handleand then removethe big handle Remove top cover plate Remove 3 connection screws among top cover plate front panel and right sideplate Then remove top cover plate ...

Page 73: ...5 connection screws among front panel chassis and motor support Then remove front panel 4 Remove axial flow fan blade Remove nut of fan blade and then remove axial flow fan blade 5 Remove right side plate Remove 7 connection screws among right side plate chassis valve support and electric box front grill front panel axial flow fan blade right side plate ...

Page 74: ...spots connecting the 4 way Valve Assy to take it out Note Refrigerant should be discharged firstly Welding process should be as quickly as possible and keep wrapping cotton wet all the time Be sure not to burn out the lead out wire of compressor 7 Disassemble 4 way Valve Assy 8 Disassemble Capillary Sub assy Unsolder weld point of capillary Sub assy valve and outlet pipe of condensator Then remove...

Page 75: ...tapping screws fixing the motor support Lift motor support to re move it 9 Disassemble motor and motor support Motor Motor support 10 Disassemble Clapboard Sub Assy Loosen the screws of the Clapboard Sub Assy The Clapboard Sub Assy has a hook on the lower side Lift and pull the Clapboard Sub Assy to remove Clapboard Sub Assy ...

Page 76: ...r return pipe and remove the gas valve Note it is necessary to warp the gas valve when unsoldering the welding spot Remove the 2 screws fixing liquid valve Unsolder the weld ing spot connecting liquid valve and remove the liquid valve 2 Remove the 3 footing screws of the compressor and remove the compressor Compressor Gas valve Liquid valve ...

Page 77: ...the product specification and appearance in this manual without notice and without incurring any obligations Add West Jinji Rd Qianshan Zhuhai Guangdong China 519070 Tel 86 756 8522218 Fax 86 756 8669426 E mail gree gree com cn www gree com GREE ELECTRIC APPLIANCES INC OF ZHUHAI ...

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Gree GWH09RA-K3DNA1B, Service Manual

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