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Gree GWH18MC-K3DNE3G Service Manual
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Gree GWH18MC-K3DNE3G Service Manual

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Change for Life
Service Manual
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI

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Summary of Contents for Gree GWH18MC-K3DNE3G

  • Page 1 Change for Life Service Manual GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 4 MODE I F EEL TIMER CLOCK X-FAN TEMP TIMER TURBO SLEEP LIGHT...
  • Page 9 220V Conditions 220V Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) Conditions...
  • Page 10 Outdoor side noise Indoor side noise High Super High Middle Indoor Fan Motor Rotating Speed Compressor frequency/Hz...
  • Page 11 Φ55 Φ55 Φ70 Φ70...
  • Page 12 1000...

  • Page 13: Indoor Unit

    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...
  • Page 14 TUBE TEMP. ROOM TEMP. SENSOR SENSOR FAN MOTOR TERMINAL TUBE ROOM BLOCK N(1) COM-OUT PRINTED CIRCUIT BOARD JUMP L(AC-L) YEGN (SWING) DISP1 DISP2 SWING-UD YEGN EVAPORATOR RECEIVER AND SWING DISPLAY BOARD MOTOR...
  • Page 15 TUBE TEMP. ROOM TEMP. SENSOR SENSOR FAN MOTOR TERMINAL TUBE ROOM BLOCK N(1) COM-OUT PRINTED CIRCUIT BOARD JUMP L(AC-L) YEGN (SWING) DISP1 DISP2 SWING-UD HEALTH-N HEALTH-L YEGN EVAPORATOR COLD PLASMA GENERATOR RECEIVER AND SWING DISPLAY BOARD MOTOR TUBE TEMP. ROOM TEMP. SENSOR SENSOR FAN MOTOR...
  • Page 16 OVERLOAD PROTECTOR WARNING Please don't touch any terminal COMP. when the voltage of terminal YEGN P(DC+) and N(DC-) at AP1 is WH WH COMP higher than 30V to prevent the MAGNETIC risk of electric shock ! RING BU YE YEGN TERMINAL BU YE BLOCK...

  • Page 19: Timer On/Timer Off

    set fan speed operation mode auto mode send signal health function cool mode I feel dry mode ventilation operation X-fan mode fan mode set temperature heat mode turbo mode set time TIMER ON/TIMER clock sleep mode child lock light Temp. display type :set temp.
  • Page 20 AUTO COOL DRY HEAT...
  • Page 21 no display (horizontal louvers stops at current position) no display...
  • Page 22 Sketch map for replacing batteries...
  • Page 24 O(0°)
  • Page 34 Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe...
  • Page 35 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 37 Wall Wall Level meter Mark in the middle of it Space Space to the to the Open-end wrench wall wall above above Union nut 150mm 150mm Pipe Pipe joint Union nut Pipe Torque wrench Right Left Φ55/70mm Φ55/70mm Indoor pipe Rear piping hole Rear piping hole Insulating pipe...
  • Page 38 Screw Panel Wiring cover Indoor and outdoor power cord Indoor unit pipe Cable-cross hole Liquid pipe Band Drain hose Power connection wire Drain hose Connection pipe Band Indoor power cord blue black brown yellow- green Connect to outdoor unit Note: The wiring connect is for reference only, please refer to the actual one.
  • Page 39 Handle N(1) yellow- green blue black brown brown blue POWER yellow- green Connect to indoor unit Note: the wiring connect is for reference only, please refer to the actual one. Drain vent Chassis Outdoor drain join t Drain hose At least 3cm above the floor Foot holes Foot holes The drain hos...
  • Page 40 The drain hose can't be fluctuant The water outlet can't be placed The drain hose in water can't be fluctuant The water outlet can't be fluctuant Liquid valve Piezometer Gas valve Valve cap Refrigerant charging vent Nut of refrigerant Charging vent Vacuum pump Inner hexagon spanner...
  • Page 43 Troubleshooting for F1,F2 malfunction the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? Insert the temperature sensor tightly Is malfunction eliminated Is there short circuit due to trip - over of the parts? Make the parts upright Is malfunction eliminated Is the...
  • Page 44 Troubleshooting for H6 malfunction Stir the blade with a tool to see whether the blade rotates smoothly Tighten the screw; reassemble the blade, motor and shaft bearing rubber base sub-assy to make sure there is no foreign object between them Is malfunction eliminated Check if the connection of PG...
  • Page 45 Troubleshooting for C5 malfunction Appearance of Is there jumper cap on the the jumper cap mainboard ? Assemble the jumper cap with the same model Is malfunction eliminated the jumper cap inserted correctly and tightly ? Insert the jumper cap tightly Is malfunction eliminated...
  • Page 46 Troubleshooting for E6 malfunction Disconnect power and check if the connection wire of indoor and outdoor units and the built-in wire of electric box are correctly connected. Connect the wire properly according Is malfunction Correct connection? to the wiring eliminated? diagram.
  • Page 47 Troubleshooting for U8 malfunction Re-energize1 minute after de-erergization The unit returns to normal. Conclusion:U8 is displayed due U8 is still to instant energization afte de- displayed energization while the capacitor discharges slowly. The zero-cross detection circuit of the mainboard is defined abnormal.Replace the mainboard with the same model...
  • Page 58 Troubleshooting for E5 malfunction Is the supply voltage unstable Normal fluctuation is within 10 % of the rated Malfunction is with big fluctuation? voltage on the nameplate eliminated Is the supply voltage too low Malfunction is Adjust the supply voltage to maintain it within Malfunction is with overload? eliminated...
  • Page 62 MODE I F EEL TIMER CLOCK X-FAN TEMP TIMER TURBO SLEEP LIGHT...
  • Page 64 MODE I F EEL TIMER CLOCK X-FAN TEMP TIMER TURBO SLEEP LIGHT...
  • Page 66 10 11 12 13...
  • Page 68 9 10 11 12 13 14 15...
  • Page 75 Steps Procedure 1. Remove top panel Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. handle valve top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 76 Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. Remove the 6 screws connecing the left side plate and right side plate and then remove rear grill rear grill panel 3.
  • Page 77 4. Remove fan motor axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. motor support Remove the 4 tappin g screw s fixing the motor; disconnect the leading wire insert of the motor and then remove the moto r. Remove the 2 tappin g scre ws fixing the motor support and then pull the motor support up wa rds to remove it.
  • Page 78 6.Remove soundproof sponge Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully soundproof sponge 7. Remove Isolation sheet Remove the 3 screws fixing the isolation sheet and then remove the Isolation sheet. Isolation sheet 8.
  • Page 79 9. Remov e compressor Remove the 3 foot nuts fixing the compressor and then remove the compressor. compressor 10.Remove condenser sub-assy capillary sub-assy support Remove the screws connecting the support (condenser) and condenser assy,and then remove the support(condenser). condenser sub-assy Remove the chassis sub-assy and condenser sub-assy.
  • Page 80 Steps Procedure 1. Remove top panel handle Twist off the screws used for fixing the handle and v alve cover , pull the handle and v alve cover up ward to remove it. valve cover top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 81 Remove the 5 screws connecting the panel with the chassis and the motor support, and then remove the panel. panel 3. Remove right side plate and left side plate right side plate Remove the scre ws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy .
  • Page 82 4. Remove fan motor and axial flow blade axial flow blade Remove the nuts fixing the blade and then remove the axial flow blade. fan motor fixing frame Remove the 4 tapping screws fixing the motor; disconnect the leading wire insert of the motor and then remove the motor.
  • Page 83 4-way valv e assy 6.Remove soundproof sponge and Since the piping ports on the soundproof sponge are torn easily, remove the soundproof sponge carefully 4-way valv e assy Discharge the refrigerant completely;unsolder the pipelines connecting the compressor and the condenser assy,and then remove the 4-way valve assy.
  • Page 84 8. Remov e Cut off Valve and Valve Support Remove the 2 bolts fixing the valve subassemblies. Unsolder the welding joint connecting the gas valve and the return air pipe. Remove the gas valve. (Note: When unsoldering the soldering joint, wrap the gas valve with wet cloth completely to avoid damage to the valve caused by high temperature.) Unsolder the welding joint connecting the liquid valve...
  • Page 85 condenser sub-assy 11.Remove condenser sub-assy Remove the chassis sub-assy and condenser sub-assy. chassis sub-assy...
  • Page 87 Pipe Pipe cutter Leaning Uneven Burr Pipe Shaper Downwards Union pipe Pipe Hard mold Expander Pipe Smooth surface Improper expanding damaged leaning crack uneven surface thickness The length is equal...

  • Page 91: Gree Electric Appliances,Inc.of Zhuhai

    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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