Gree GWC18TC-S3DNZ1B Page 92 Service Manual Download

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Summary of Contents for GWC18TC-S3DNZ1B

Page 1: ...GREE ELECTRIC APPLIANCES INC OF ZHUHAI Service Manual Change for Life 02 7 6 1 7 6 1 7 6 1 7 6 1 7 6 1 7 6 1 7 6 1 7 6 1 5HIULJHUDQW 5...

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Page 5: ...6XPPDU DQG HDWXUHV 5HPRWH RQWUROOHU FAN MODE ON OFF 7 6 1 2 7 6 1 2...

Page 6: ...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 lea...

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Page 13: ...DB35 C WB24 C Indoor air flow High Pipe length 5m Conditions Indoor DB20 C WB15 C Outdoor DB7 C WB6 C Indoor air flow High Pipe length 5m 230V 230V RROLQJ HDWLQJ 0 20 40 60 80 100 120 10 5 0 5 10 Cap...

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Page 18: ...SIDE 3 WAY VALVE LIQUID SIDE 2 WAY VALVE COOLING HEATING Accumlator Discharge Suction 4 Way valve Electron expansion valve Strainer Strainer INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXC...

Page 19: ...OARD TERMINAL L OUT AC L 0 PE M2 M4 M3 RING MAGNETIC MOTOR U D2 MOTOR U D1 MOTOR L R PRINTED CIRCUIT BOARD SWING SWING LR SWING SWING UD2 AP1 DISP2 DISP1 BN BK YEGN GN BU WH L L ROOM TUBE K7 SWING UD1...

Page 20: ...OR WARNING Please don t touch any terminal when the AP1 is higher than 30V to prevent the risk of electrical shock voltage of terminal P DC and N DC at DC MOTOR MOTOR FAN DISPLAY BOARD RECEIVERAND 0 R...

Page 21: ...y terminal when the AP1 is higher than 30V to prevent the risk of electrical shock voltage of terminal P DC and N DC at FAN MOTOR C2 YV C1 7 6 1 2 7 6 1 2 L1 L2 L2 L2 L1 TEM SENSOR DISCHARGE TEM SENSO...

Page 22: ...prevent the risk of electrical shock WARNING MOTOR HALL FAN YEGN OFAN PE M BK WH INDOOR UNIT 0 0 0 U V T SENSOR YEGN AC L N YEGN BU PE BN BK AP1 XT 3 2 N 1 BU YE RD W PE PE PE COM INNER RT1 RT2 RT3 Y...

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Page 24: ...rface 2 Compressor overload protector 3 Temperature sensor 4 Electric expansion valve 5 Fan HALL interface 6 Outdoor fan 7 4 way valve 8 Communication interface with indoor unit 9 Live wire 10 Earthin...

Page 25: ...t setting temperature displaying the room TEMP button TEMP indoor ambient temperature displaying indoor temperature outdoor ambient temperature displaying outdoor tempe rature if there no outdoor ambi...

Page 26: ...TO FAN or HEAT mode button can turn on or turn off the Turbo TURBO button TURBO function After the Turbo function turned on the signal of Turbo will display The signal will be automatically cancelled...

Page 27: ...nutes When repress this button this function will be turned off HEALTHY AND SCAVENGING BUTTON and Timer On setting Signal ON will blink and display signal will conceal the numerical section will becom...

Page 28: ...ecreased 1 after that the unit will keep on running under this temperature 2 When setting the initial temperature 24 2 7 after turned on Sleep function the temperature will be increased 1 in every hou...

Page 29: ...tting finished sleep curve setting finished at this time the remote control will resume the original timer display temperature 88 will display the corresponding temperature of last setting sleep curve...

Page 30: ...n to set the desired temperature It is unnecessary to set the temp 2 Press MODE button select desired running mode Note When it is powered on the guide louver of main unit will close automatically 1 A...

Page 31: ...tared different Quiet status could be optional and turned off Fig 1 Fig 2 1 Slightly to press the place with along the arrowhead direction to push the back cover of wireless remote control As show in...

Page 32: ...r fan operate the indoor fan operates at low speed When Tpreset 3 Tamb Tpreset the unit will start drying operation In this case the indoor fan operates at low speed the compressor and the outdoor fan...

Page 33: ...26 the unit will operate at cooling mode the default set temperature is 25 2 5 2 When Tamb 21 the unit will operate at heating mode the default set temperature is 20 if the cooling only unit operates...

Page 34: ...1 indoor fan will operate at low speed Note The switchover among superhigh speed high speed medium speed and low speed requires minimum 210seconds of operation 2 7 4 In this mode set temperature will...

Page 35: ...tus while cold plasma and static dedusting will be forced to be turned on and other loads will be turned off Then the complete unit will be turned off When X FAN function is set to be off once pressin...

Page 36: ...for heating 64 of corresponding angle this louver will be activated For 24K mode only when big horizontal louver rotates to the first position for heating 40 of corresponding angle this louver will be...

Page 37: ...ed from remote control the controller will operate according to the ambient temperature sent by the remote controller For cold blow prevention the unit operates according to the ambient temperature se...

Page 38: ...ature point in heating 6 2 Under this mode the temperature setting range is 16 30 7 Defrosting control heating mode 7 1 If it turns to defrosting time and it detected that the defrosting temperature i...

Page 39: ...operation frequency of compressor may decrease or increase 14 2 If 17A IAC current the system will stop operation because of overcurrent the complete unit can resume operation only after the compresso...

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Page 42: ...250 cm 15cm Above 15cm Above 15cm Above The dimensions of the space necessary for proper installation of the unit include the minimum permissible distances to adjacent parts Space to the wall 200cm Ab...

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Page 71: ...n 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 loose...

Page 72: ...gized the unit check if the voltage between red and black terminal of motor is 310VDC within 1 minute during the louver is under operation Mainboard malfunction replace the mainboard with same model M...

Page 73: ...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...

Page 74: ...FDWLRQ PDOIXQFWLRQ Poor contact of any line may lead to communication malfuntion Is there incorrect match between the main board and the display panel or between the indoor and outdoor boards Is there...

Page 75: ...7URXEOHVKRRWLQJ 2XWGRRU XQLW H GHWHFWLRQ SRLQW Test1 Test2 Test3 Test4 Test5 Test6 Test7 Tset8 Test9 Test12 C A B D E F G H I J K L M Test10 N Test14 S T Test11 Test13...

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Page 77: ...circuit on control panel AP1 Replace the control panel AP1 Measure the AC voltage between terminalL andN on wiring board XT power supply Voltage within 210VAC 250VAC Shut down the power and repair the...

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Page 79: ...ween the two ends of capacitor C2 until the voltage is lower than 20V Replace the capacitor C2 Then energize and start the unit Replace the control panel AP1 Take corrective actions according to Techn...

Page 80: ...minal OFAN is connected well 2 Test if resistance value of any two terminals is less than 1k with ohmic meter If the indoor and outdoor fan work well After the unit de energized for 20min Replace cont...

Page 81: ...connected and connection sequence is correct Replace control board AP1 Replace the compressor If malfunction is removed If the stop time of compressor is more than 3min N If the stop time is not enoug...

Page 82: ...f the stop time of compressor is more than 3min Synchronism after energize the unit and start it Connect wire well Synchronism occurred during operation Replace control board AP1 If the radiating of u...

Page 83: ...EKV coil of electron expansion valve If the wiring terminal FA of electron expansion is well connected Remove malfunction The resistance value of first 4 l ead foot an d th e fifth lead foot is simila...

Page 84: ...rt circuit and replace it Y Re energize the unit and start it Cut the terminal of reactor test the resistance between two terminals of reactor with ohmic meter Replace the reactor Re energize the unit...

Page 85: ...ation circuit of outdoor unit Problem of communication circuit Check built in wiring of indoor and outdoor unit Connection correct Malfunction of circuit is detected with control board AP1 voltage Che...

Page 86: ...Outdoor unit malfunction Test voltage value with Test 13 position in diagram with voltage meter Number jumping Test voltage value with Test 11 position in diagram with voltage meter Number jumping Te...

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Page 90: ...VXSSOLHV EHIRUH GLVDVVHPEO 1 Before disassembling the unit Before disassembling the unit 2 Remove filter Open the panel Loosen the clasps on filter push the filter inward and then pull it upward then...

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Page 97: ...er Open the panel Loosen the clasps on filter push the filter inward and then pull it upward then the filter can be removed 1 2 Steps Procedure air filter hooks DUQLQJ H VXUH WR ZDLW IRU D PLQLPXP RI...

Page 98: ...the panel 2 4 Remove electric box cover Along the groove fixing front panel slide the rotor shaft outward to remove the front panel screw Unscrew a screw of electric box cover with screwdriver Then ta...

Page 99: ...remove the axial bush 1 Remove Axial bush 2 1 Take out the front case to separate the front case with bottom assembly 2 6 Remove front case Remove the screw cover of front case unscrew the 8 screws of...

Page 100: ...separate the electric box cover 2 2 3 screw earth wire Remove every wiring terminals and remove the screws fixing electric box to remove the electric box sub assy electric box Remove Temperature Sens...

Page 101: ...nection pipe clamp to remove the connection pipe clamp pipe clamp Loosen the clasps connecting the water tray and chassis and then remove the water tray Remove the screws fixing evaporator sub assy sl...

Page 102: ...to the position as shown by the broken line 4 5 Remove the 2 screws of step motor with screwdriver and remove the step motor 1 9 Remove the cross flow louver and motor srews srews Lift up the evapora...

Page 103: ...5HPRYDO 3URFHGXUH Remove screws fixing cross flow blade and motor 2 3 Pull out the plug of ring of bearing Remove the motor sub assy 4 Cross blow blade Fan motor Ring of Bearing Steps Procedure...

Page 104: ...nel with the front panel and the right side plate and then remove the top panel 2 Remove grille and panel Remove the 2 screws connecting the grille and the panel and then remove the grille top cover g...

Page 105: ...eft side plate and right side plate Remove the screws connecting the right side plate with the chassis the valve support and the electric box and then remove the right side plate assy Remove the screw...

Page 106: ...en pull the electric box upwards to remove it Remove the 4 tapping screws fixing the motor disconnect the leading wire insert of the motor and then remove the motor Remove the 2 tapping screws fixing...

Page 107: ...d then remove the fireproof electric box Fireproof electric box Since the piping ports on the soundproof sponge are torn easily remove the soundproof sponge carefully soundproof sponge 7 Remove Isolat...

Page 108: ...and then remove the 4 way valve assy Remove the 3 foot nuts fixing the compressor and then remove the compressor Remove the screws connecting the support condenser and condenser assy and then remove...

Page 109: ...5HPRYDO 3URFHGXUH 2 Dissemble the chassis sub assy and condenser sub assy condenser sub assy chassis sub assy Steps Procedure...

Page 110: ...el Loosen the screws connecting the front side panel and mask and chassis Remove the front side panel front side plate 2 Remove grille Twist off the screws connecting the grille and panel and then rem...

Page 111: ...panel chassis and motor support with screwd river and then remove the panel 4 Remove guard grille Twist off the screws fixing the guard grille and then remove the guard grille 5 Remove handle Twist o...

Page 112: ...nd then remove the right side plate Twist off the screws on electric box cover with screwdriver and then remove the electric box cover Twist off the screws on electric box cut off the tieline with sci...

Page 113: ...blade Twist off the screws between electric box 1 and left side plate with screw driver pull it upwards to remove the electric box 1 Twist off the screws connecting the left side plate and chassis wi...

Page 114: ...screws fixing the motor pull out the pin of leading wire for motor and then remove the motor Twist off the tapping screws fixing the motor support pull it upwards and then remove the motor support Uns...

Page 115: ...dering joint wrap the gas valve with wet cloth completely to avoid the damage to valve and release all refrigerant completely at first Unsolder the soldering joint between liquid valve and connection...

Page 116: ...chassis 15 Remove support plate of condenser Twist off the screws connecting the support plate of condenser and condenser with screwdriver and then remove the support plate of condenser 16 Remove chas...

Page 117: ...he 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 86694...

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Gree GWC18TC-S3DNZ1B, Service Manual

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