Gree GWH18PD-K3NNA1A Service Manual Download Page 15

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Schematic Diagram

GWH18PD-K3NNA1A/I(CA414N00101)

GWH24PD-K3NNA1A/I(CA414N00201)

L(4)

COMP(3)

POWER

EVAPORATOR

EARTH-PLATE

VT
OG

N(1)

OUTDOOR UNIT

CAP

JUMP

AP1 PRINTED CIRCUIT BOARD

RT2

RT1

AP2

BU(WH)

BN(BK)

YEGN(GN)

CABLE

CONNECTING

TEMP.

ROOM

SENSOR

YEGN

BLOCK

TERMINAL

TEMP.

TUBE

SENSOR

PGF PG

FAN MOTOR

DISPLAY BOARD

RECEIVER AND

DISP1 DISP2

TUBE

ROOM

L101

(SWING)

SWING-UD

STEPPING MOTOR

OFAN

DISPLAY

COMP

YEGN

EVAPORATOR

EARTH-PLATE

OFAN

N(1)

OUTDOOR UNIT

CAP

JUMP

AP1 PRINTED CIRCUIT BOARD

ROOM

RT2

RT1

TUBE

SENSOR

ROOM

TUBE

BN(BK)
BU(WH)

YEGN(GN)

L101

RECEIVER AND

DISPLAY BOARD

DISP2

AP2

DISP1

CABLE

TERMINAL

BLOCK

CONNECTING

POWER

TEMP.

SWING-UD

STEPPING MOTOR

(SWING)

FAN MOTOR

PG PGF

L(AC-L)

Summary of Contents for GWH18PD-K3NNA1A

Page 1: ...PLIANCES INC OF ZHUHAI Service Manual Change for Life Models GWH18PD K3NNA1A CA414000100 GWH18PD K3NNA1A CA414000101 GWH18PD K3NNA1A CA414000102 GWH24PD K3NNA1A CA414000201 GWH24PD K3NNA1A CA414000202 Refrigerant R410A ...

Page 2: ... System Diagram 10 5 Schematic Diagram 11 5 1 Electrical Data 11 5 2 Electrical Wiring 11 5 3 Printed Circuit Board 15 6 Function and Control 16 6 1 Remote Controller Description 16 6 3 Description of Each Control Operation 20 7 Installation Manual 24 7 1 Notices for Installation 24 7 2 Installation Drawing 26 7 3 Install Indoor Unit 27 7 4 Installation of Outdoor Unit 28 7 5 Check after Installat...

Page 3: ...oubleshooting 38 9 1 Precautions before Performing Inspection or Repair 38 9 2 Confirmation 38 9 3 Judgement by Flashing LED of Indoor Outdoor Unit 38 9 4 How to Check Simply the Main Part 40 10 Removal Procedure 47 10 1 Removal Procedure of Indoor Unit 47 10 2 Removal Procedure of Outdoor Unit 55 ...

Page 4: ...Summary and Features Indoor Unit Outdoor Unit Remote Controller YAM1F GWH18PD K3NNA1A I CA414N00100 GWH18PD K3NNA1A I CA414N00101 GWH24PD K3NNA1A I CA414N00201 GWH24PD K3NNA1A I CA414N00200 GWH18PD K3NNA1A O GWH24ND K3NNB1A O ...

Page 5: ... or 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 stro...

Page 6: ...NNA1A I GWH18PD K3NNA1A I Fan Type Cross flow Cross flow Diameter Length DXL mm Φ98X710 Φ98X710 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1000 800 1350 1200 1000 800 Fan Motor Heating Speed SH H M L SL r min 1420 1250 1100 950 1420 1250 1100 950 Output of Fan Motor W 20 20 Fan Motor RLA A 0 31 0 31 Fan Motor Capacitor μF 1 5 1 5 Input of Heater W Evaporator Form Aluminum Fin copper Tube ...

Page 7: ...Fan Motor Speed rpm 770 850 Output of Fan Motor W 35 35 Fan Motor RLA A 0 3 0 37 Fan Motor Capacitor μF 2 5 2 5 Air Flow Volume of Outdoor Unit m3 h 1800 1800 Fan Type Axial flow Axial flow Fan Diameter mm Φ394 5 Φ394 5 Defrosting Method Automatic Defrosting Automatic Defrosting Climate Type T1 T1 Isolation I I Moisture Protection IP24 IP24 Permissible Excessive Operating Pressure for the Discharg...

Page 8: ...an Type Cross flow Cross flow Diameter Length DXL mm Φ98X710 Φ98X710 Fan Motor Cooling Speed SH H M L SL r min 1350 1200 1000 800 1350 1200 1000 800 Fan Motor Heating Speed SH H M L SL r min 1420 1250 1100 950 1420 1250 1100 950 Output of Fan Motor W 20 20 Fan Motor RLA A 0 31 0 31 Fan Motor Capacitor μF 1 5 1 5 Input of Heater W Evaporator Form Aluminum Fin copper Tube Aluminum Fin copper Tube Pi...

Page 9: ...1X660 Fan Motor Speed rpm 780 Output of Fan Motor W 68 Fan Motor RLA A 0 75 Fan Motor Capacitor μF 3 Air Flow Volume of Outdoor Unit m3 h 2800 Fan Type Axial flow Fan Diameter mm Φ460 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IP24 Permissible Excessive Operating Pressure for the Discharge Side MPa 4 3 Permissible Excessive Operating Pressure for the Suc...

Page 10: ...tdoor P MPa T1 C T2 C 27 19 35 24 18K 0 8 0 9 in 8 11 out 11 12 in 75 85 out 37 43 Super High High 24K 0 8 1 0 in 8 11 out 11 14 in 75 85 out 36 43 NOTES 1 T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe temperature of condenser P Pressure of air pipe connecting indoor and outdoor units on the side of gas pipe 2 Measure surface temperature of heat exchanger pipe around ...

Page 11: ...Construction Views 8 3 Construction Views 3 1 Indoor Unit 3 2 Outdoor Unit 848 257 540 286 320 762 540 694 945 200 298 194 57 Unit mm Unit mm 18K ...

Page 12: ...9 Construction Views 24K 847 300 913 680 378 549 348 Unit mm ...

Page 13: ...r Liquid 1 4 6 mm Gas 1 2 12mm T I N U R O O D T U O T I N U R O O D N I HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR GAS SIDE 3 WAY VALVE LIQUID SIDE 2 WAY VALVE COOLING HEATING Accumlator Discharge Suction Muffler 4 Way valve Capillary r e n i a r t S r e n i a r t S ...

Page 14: ...OTECTIVE EARTH YEGN YELLOW GREEN BK BLACK VT VIOLET OG ORANGE Indoor Unit GWH18PD K3NNA1A I CA414N00100 COMP L AC L DISP1 AP1 DISPLAYBOARD RECEIVERAND AP1 PRINTED CIRCUIT BOARD JUMP CAP M1 PG PGF FANMOTOR BU BK VT OG YEGN YEGN EVAPORATOR PE PE EARTH PLATE N1 BU BK XT 4V OFAN VT OG K1 5 4 2 N 1 M2 OUTDOOR UNIT ROOM RT2 RT1 TUBE SENSOR SENSOR ROOMTEMP TUBETEMP L101 BLOCK TERMINAL YEGN GN BU WH BN BK...

Page 15: ...ENSOR M1 PGF PG FANMOTOR DISPLAYBOARD RECEIVERAND DISP1 DISP2 TUBE ROOM L101 M2 SWING SWING UD STEPPINGMOTOR N1 4V OFAN K1 DISPLAY 0 0 N L DISPLAY VT BN COMP OG BN BK BU 3 OG VT YEGN YEGN EVAPORATOR PE PE EARTH PLATE OFAN 4V 5 4 XT 2 N 1 OUTDOOR UNIT CAP JUMP AP1 PRINTED CIRCUIT BOARD ROOM RT2 RT1 TUBE SENSOR SENSOR ROOM TUBE BN BK BU WH L BK BU N YEGN GN N1 L101 RECEIVERAND DISPLAYBOARD DISP2 AP2...

Page 16: ...EGN GN BU BK BU WH BN BK POWER TUBETEMP ROOMTEMP SENSOR SENSOR TUBE RT1 RT2 ROOM AP1 PRINTED CIRCUIT BOARD JUMP CAP OUTDOOR UNIT N 1 2 XT 4 5 4V OFAN EARTH PLATE PE PE EVAPORATOR YEGN YEGN VT OG 3 BU BK BN OG COMP BN VT L PGF PG M1 STEPPINGMOTOR M2 FANMOTOR RECEIVERAND BLOCK TERMINAL CONNECTING CABLE SWING UD SWING N L ...

Page 17: ...14 Schematic Diagram These circuit diagrams are subject to change without notice please refer to the one supplied with the unit GWH24ND K3NNB1A O YEGN ...

Page 18: ...h function 4 Interface of neutral wire 5 Interface of live wire for health function 6 Control terminal of PG motor 7 Interface of 4 way valve 8 Feedback interface of PG motor 9 Left right swing 10 Up down swing 11 Interface of outdoor fan 12 Display interface 13 Interface of remote control motor 14 Interface of indoor tube temperature sensor 15 Interface of indoor ambient temperature sensor ...

Page 19: ...ress this button Auto Low Middle High speed can be circularly selected After FAN button FAN powered on Auto fan speed is default Low fan AUTO High fan Press this button the clock can be set up signal blink and display Within 5 CLOCK button CLOCK seconds the value can be adjusted by pressing or button if continuously press this button for 2 seconds above in every 0 5 seconds the value on ten place ...

Page 20: ...rature s displaying o t s u t a t s r e h t o m o r f d e g n a h c s i s u t a t s displays the ambient temperature 5s later or within 5s it receives other remote control signal that will return to display the setting temperature if the users haven t set up the temperature displaying status that will display the setting temperature After powered on the setting temperature displaying is defaulted ...

Page 21: ... numbers change in the tens place of minute at 2 5 seconds speed and carry During 5s blink press the Timer button the timer setting succeeds The Timer On has been set up repress the timer On button the Timer On will be canceled Before setting the Timer please adjust the Clock to the current actual time TIMER OFF BUTTON Once press this key to enter into TIMER OFF setup in which case the TIMER OFF i...

Page 22: ... running The upper and lower guide board rotate to horizontal position then the indoor fan will run at low fan speed 10s later the unit will turn off About new function of defrosting Under switch off state hold MODE key for 2 seconds to enter or exit defrost H1 function After being energized the defrost H1 function is defaulted off When entering defrost H1 function the double 8 nixie tube will dis...

Page 23: ...tions Freeze protection If the system is under freeze protection the compressor and the outdoor fan stop operation and the indoor fan operates at set speed If freeze protection is eliminated and the compressor has been out of operation for 3 minutes the unit will resume its previous running status 2 1 3 Overcurrent Protection If the system current exceeds the specified value in 3 successive second...

Page 24: ...operation the indoor fan will operate at low speed When freeze protection is eliminated and the compressor has been out of operation for 4 minutes the complete unit will resume its previous running status 2 2 3 Other protection Other protections are the same as those in cooling mode 2 3 Heating mode 2 3 1 Heating conditions and process When Tamb Tpreset 2 the unit starts heating operation In this ...

Page 25: ... OFF If timer OFF is set at unit OFF the system will keep standby status If timer OFF is set at unit ON upon OFF time reaches the unit will stop operation Timer Change Although timer has been set the unit still can be turned on off by pressing ON OFF button of the remote controller You can also set the timer once again and then the unit will operate according to the last setting If timer ON and ti...

Page 26: ... For some models if set temperature display is set by the remote controller current set temperature will be displayed After that when switching to room temperature display from set temperature or outdoor temperature by the remote controller room temperature will be displayed for 5 seconds firstly and then set temperature display returns 3 10 Locked protection to PG motor If the indoor fan motor ke...

Page 27: ...e temperature of refrigerant line will be high please keep the interconnection cable away from the copper tube 8 The instructions shall state the substance of the following This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use...

Page 28: ...nnected in fixed wiring Note Make sure the live wire neutral wire and earth wire in the family power socket are properly connected There should be reliable circuit in the diagram Inadequate or incorrect electrical connections may cause electric shock or fire 7 1 5 Earthing Requirements 1 Air conditioner is type I electric appliance Please ensure that the unit is reliably earthed 2 The yellow green...

Page 29: ...ce to the wall Air inlet side 300cm Above 250 cm Above 15cm Above 15cm Above 15cm Above 200cm Above 30cm Above 50cm Above 50cm Above 30cm Above The dimensions of the space necessary for proper installation of the unit include the minimum permissible distances to adjacent parts ƽ Schematic diagram being reference only outdoor unit is with variation please refer to real product for authentic informa...

Page 30: ...should be placed at a downward slant for easy discharge of condensate Note the insulating tube should be connected reliably with the sleve outside the outlet pipe The drain hose should be downward slant without distortion bulge or fluctuation Do not put the water outlet in the water 1 Open the front panel 2 Remove the wiring cover Connect and fix power connection cord and signal control wire to th...

Page 31: ...nt valve 2 Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench referring to the following NOTE Connect the connection pipe to indoor unit at first and then to outdoor unit Handle piping bending with care Do not damage the connection pipe Ensure that the joint nut is tightened firmly otherwise it may cause leakage N m Ф6 Ф 9 52 Ф 12 31 35 15 20 50 55 Ф 16 60 65 Ф ...

Page 32: ...her to plug other holes will be determined by the dealers according to actual conditions 7 5 Check after Installation and Test Operation 7 5 1 Check after Installation Items to be checked Possible malfunction Has the unit been fixed firmly The unit may drop shake or emit noise Have you done the refrigerant leakage test It may cause insufficient cooling heating Is thermal insulation sufficient It m...

Page 33: ...row direction and then remove the air filter as shown Fig a 2 Attach the healthy filter onto the air filter as shown Fig b 3 Install the air filter properly along the arrow direction in Fig c and then close the panel Fig a filter Air filter Fig b Fig c Healthy 7 6 2 Cleaning and Maintenance Remove the healthy filter and reinstall it after cleaning according to the installation instruction Do not u...

Page 34: ...Exploded Views and Parts List 31 8 Exploded Views and Parts List 8 1 Indoor Unit ...

Page 35: ... 24212133 24212133 1 18 Pipe Clamp 2611216401 2611216401 1 19 Motor Press Plate 26112494 26112494 1 20 Fan Motor 15012116 15012116 1 21 Wall Mounting Frame 01252218 01252218 1 22 Drainage Hose 05230014 05230014 1 23 Step Motor 15012086 15012086 1 24 Crank 10582070 10582070 1 25 Air Louver 2 1051211702 1051211702 1 26 Axile Bush 10542036 10542036 1 27 Electric Box Cover2 20122142 20122142 1 28 Elec...

Page 36: ... 24212133 24212133 1 18 Pipe Clamp 2611216401 2611216401 1 19 Motor Press Plate 26112494 26112494 1 20 Fan Motor 15012116 15012116 1 21 Wall Mounting Frame 01252218 01252218 1 22 Drainage Hose 05230014 05230014 1 23 Step Motor 15012086 15012086 1 24 Crank 10582070 10582070 1 25 Air Louver 2 1051211702 1051211702 1 26 Axile Bush 10542036 10542036 1 27 Electric Box Cover2 20122142 20122142 1 28 Elec...

Page 37: ...Exploded Views and Parts List 34 8 2 Outdoor Unit 22 23 1 2 3 5 6 8 10 11 12 13 14 15 16 18 19 20 21 24 25 26 27 28 4 9 7 17 GWH18PD K3NNA1A O ...

Page 38: ...Capillary Sub assy 03103911 03163101 1 11 Right Side Plate Assy 0130200404 0130200404 1 12 Valve 07100004 07100004 1 13 Valve 07100006 07100006 1 14 Big Handle 26233433 26233433 1 15 Valve Support 01713041 01713041 1 16 Terminal Board 42010265 42010265 1 17 Electric Box Sub Assy 01403117 01403117 1 18 Capacitor CBB65 33010743 3300008108 1 19 Capacitor CBB61 33010026 33010026 1 20 Terminal Board 42...

Page 39: ...Exploded Views and Parts List 36 11 21 23 20 10 9 8 7 6 1 3 4 5 12 13 14 16 17 18 19 22 15 2 GWH24ND K3NNB1A O ...

Page 40: ...170305901 1 7 Top Cover 01255001 1 8 Clapboard Sub Assy 01233035 1 9 Electric Box Assy 02603219 1 10 Condenser Assy 01113396 1 11 Rear Grill 0147500401 1 12 Capacitor CBB61 33010027 1 13 Capacitor CBB65 33000039 1 14 Terminal Board 420101941 1 15 Right Side Plate 01305095P 1 16 Handle 26235254 1 17 Valve Support Sub Assy 01713075 1 18 Valve 07130213 1 19 Valve 07100003 1 20 Capillary Sub assy 0310...

Page 41: ...ety the maintenance can be performed Take sufficient care to avoid directly touching any of the circuit parts without first turning off the power At times such as when the circuit board is to be replaced place the circuit board assembly in a vertical position Normally diagnose troubles according to the trouble diagnosis procedure as described below Refer to the check points in servicing written on...

Page 42: ...oken 3 PG motor indoor fan motor does not operate H6 OFF 3S and blinks 11 times Indoor fan outdoor fan compressor and electric heat tube stop operation 2minutes later 4 way valve stops horizontal louver stops at the current position 1 The feedback terminal of PG motor is notconnected tightly 2 The control terminalof PG motor is not connected tightly 3 Fan blade rotates unsmoothly due to improper i...

Page 43: ...tion is eliminated Replace the controller with one ofthe same model End no no no no yes yes Malfunction is removed no yes yes no Is the wiring terminal between temperature sensor and the controller loosened or poor ly contacted Is there short circuit due to trip over of the par ts Is the temperature sensor normal according to the Resistance Table Replace it with a temperature sensor of the same mo...

Page 44: ...y Mainboard malfunction Replace it No Yes Replace the fan motor End Insert the control terminal tightly Yes No Re energize to turn on the unit measure within 1 min after the louvers are opened whether the output voltage on the control terminal of the PG motor is over 50V No Yes No Is the malfunction eliminated No Is the malfunction eliminated No No No Yes Yes Yes Yes Is the control terminal of PG ...

Page 45: ...ller Install a matching jumper cap No Is the jumper cap inserted incorrectly or improperly Re insert the jumper cap The mainboard is defined abnormal replace it Yes No Yes End Is the malfunction eliminated Yes No No Yes Replace the jumper cap No Yes Is the malfunction eliminated Is the malfunction eliminated ...

Page 46: ... abnormally Is there abnormal sound or oil leakage is the temperature of the shell too high etc no no no no yes no no Replace the control panel End Normal fluctuation is within 10 of the rated voltage on the nameplate yes Malfunction is eliminated no Adjust the supply voltage to maintain it within normal range yes Malfunction is eliminated no Clean the indoor and outdoor heat exchangers and remove...

Page 47: ...46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 116 0 642 0 49 02 39 8 297 78 1 997 117 0 625 1 46 6 40 7 967 79 1 933 118 0 608 2 44 31 41 7 653 80 1 871 119 0 592 3 42 14 42 7 352 81 1 811 120 0 577 4 40 09 43 7 065 82 1 754 121 0 561 5 38 15 44 6 791 83 1 699 122 0 547 6 36 32 45 6 ...

Page 48: ...13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 663 117 0 833 1 62 13 40 10 62 79 2 577 118 0 811 2 59 08 41 10 2 80 2 495 119 0 77 3 56 19 42 9 803 81 2 415 120 0 769 4 53 46 43 9 42 82 2 339 121 0 746 5 50 87 44 9 054 83 2 265 122 0 729 6 48 42 45 8 705 84 2 194...

Page 49: ...23 53 74 62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 274 29 41 34 68 9 17 107 2 72 9 259 3 30 39 61 69 8 85 108 2 64 8 245 6 31 37 96 70 8 56 109 2 57 7 232 6 32 36 38 71 8 27 110 2 50 6 220 5 33 34 88 72 7 99 111 2 43 5 209 34 33 45 73 7 73 112...

Page 50: ...or Unit Warning Be sure to wait for a minimum of 10 minutes after turning off all power supplies before disassembly 2 1 2 Remove the filter Open the front panel filter 1 Before disassembly Before disassembly Push the filter upward and then pull it outward to remove it panel ...

Page 51: ...sh on the guide louver Pull the guide louver outward to remove it 4 Remove the panel Loosen Along the groove fixing front panel slide the rotor shaft outward to re move the front panel the screws screws fixing the display Remove the panel axile bush guide louver panel display ...

Page 52: ...cover 1 6 Remove the front case 2 1 2 Loosen the screw of the electric box cover Remove the electric box cover Open the screw cap on the front case Remove the screws fixing the front case Loosen the clasps of the front case electric box cover clasps ...

Page 53: ...ertical louver Loosen the 10 clasps connecting the vertical louver and bottom case subassembly Remove the vertical louver 8 Remove the electric box subassembly Disconnect the indoor tube temperature sensor front case clasps vertical louver temperature sensor ...

Page 54: ...nt of the electric box cover and the electric box Remove the electric box cover Disconnect the wiring terminal of the motor and step motor on the electric box Loosen the screws fixing the electric box and remove the electric box screw ground wire electric box wiring terminal of motor wiring terminal of motor electric box ...

Page 55: ...ary piping 1 1 2 9 Remove press plate of connecting pipe Remove the screws of the press plate of connecting pipe Remove press plate of connecting pipe 10 Remove the evaporator Remove the screws at the joint of the evaporator and bottom case ...

Page 56: ...ly to separate the connecting pipe and the evaporator Remove the evaporator 11 Remove motor and cross flow fan Remove the screw of the step motor and remove the step motor Remove the screw of the motor press plate Remove the press plate evaporator step motor press plate ...

Page 57: ...sket sub assy of Bearing Ring of Bearing Cross Flow Fan Fan Motor Remove the cross flow blade and motor Remove the rubber cushion of the bearing Remove the screws at the joint of the cross flow blade and the motor Take down the motor ...

Page 58: ...supplies before disassembly GWH18PD K3NNA1A O 1 Before disassembly 2 Remove big handle Remove the connection screw fixing the big handle and then remove the handle 3 Remove top cover plate Remove connection screws connecting the top panel with the front panel and the right side plate and then remove the top panel big handle top panel Steps ...

Page 59: ...emove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel 6 Remove right side plate Remove connection screws connecting the right side plate with the valve support and the electric box Then remove the right side plate Steps front grill front panel right side plate ...

Page 60: ... and disconnect the leading wire insert of the motor Then remove the motor Remove the 2 tapping screws fixing the motor support and lift the motor support to remove it 9 Remove electric box Remove screws fixing the electric box subassembly loosen the wire bundle and unplug the wiring terminals Then lift the electric box to remove it motor motor support electric box axial flow blade Steps ...

Page 61: ...the isolation sheet and then remove the isolation sheet 11 Remove soundproof sponge Remove the soundproof sponge wrapping the compressor 12 Remove magnet coil Remove the screw fixing the magnet coil and then remove the coil isolation sheet soundproof sponge magnet coil Steps ...

Page 62: ...uring unsoldering 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 temperature Remove the 2 screws fixing the liquid valve and unsolder th...

Page 63: ...re disassembly GWH24ND K3NNB1A O Procedure Steps 1 Before disassembly 2 Remove handle Remove the screw fixing the handle and then remove the handle 3 Remove top panel and grille Remove screws fixing the top panel and the grille respectively and then remove the top panel and the grille top panel grille handle screw ...

Page 64: ...then remove the front panel and the rear guard grille 5 Remove right side plate Remove screws connecting the front panel with the chassis and the motor support and then remove the right side plate 6 Remove axial flow blade Remove nut fixing the blade and then remove the blade screw right side plate axial flow blade nut screw screw panel rear guard grille screw ...

Page 65: ...e motor and the motor support 8 Remove electric box 9 Remove soundproof sponge Remove the soundproof sponge wrapping the compressor Remove the 2 screws fixing the electric box loosen the wire bundle pull out the wiring terminals and then pull electric box upwards to remove it screw motor support motor electric box assy soundproof sponge ...

Page 66: ...uding the soldering joint among the 4 way valve the compressor the condenser the gas valve and the liquid valve connected to the compressor at first NOTE Before unsoldering the joints discharge the refrigerant completely Remove the 3 foot nuts fixing the compressor with wrench and then remove the compressor screw solenoid coil 4 way valve assy nut compressor gas valve liquid valve ...

Page 67: ...lation sheet and then remove the isolation sheet 13 Remove valve support and condenser Remove screws fixing the valve support and then remove the valve support Remove the screw fixing the condenser and then pull the condenser upwards to remove it screw screw isolation sheet condenser valve support ...

Page 68: ...odidy 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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Summary of Contents for GWH18PD-K3NNA1A

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Gree GWH18PD-K3NNA1A, Service Manual, Page: 15 / 68

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