LG TD-C70040E, Service Manual

Page 1: ...1 CONDENSING DRYER SERVICE MANUAL READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE MODEL TD C7004 Series CAUTION ...

Page 2: ...2 APR 2004 PRINTED IN KOREA P No 3828EL9001A ...

Page 3: ...to ground are removed for service they must be returned to their original position and properly fastened IMPORTANT Electrostatic Discharge ESD Sensitive Electronics ESD problems are present everywhere ESD may damage or weaken the electronic control assembly The new control assembly may appear to work well after repair is finished but failure may occur at a later date due to ESD stress Use an anti ...

Page 4: ...ICATION 6 4 PROGRAM CYCLE 7 5 INSTALLATION INSTRUCTIONS 10 6 MAINTENANCE INSTRUCTIONS 12 7 COMPONENT TESTING TIPS 15 8 CONTROL LAY OUT 17 9 WIRING DIAGRAM 18 10 TROUBLESHOOTING 19 11 DIAGOSTIC TEST 21 12 DIASSEMBLE INSTRUCTIONS 28 13 EXPLODED VIEW 38 CONTENTS ...

Page 5: ... 40 kg Gross 46 kg 595 W x 850 H x 600 D 7 0 kg Electronic Control AC 220 230V 50Hz 16A 250W 2500W 22 5 15W 125mA 250V 10A 240V 25A Electronic 116 Liter Thermal Fuse Motor Over current protect Motor Thermostat Micom electronic Control 1 Temperature 2 thermistors 2 Humidity Electrode Sensor Removable Double screen 56 57 rpm Available Stainless steel Available Available Available High Low temp butto...

Page 6: ...g time is shortened by efficient air flow mechanism and optimized heater Innovative noise performance Noise gets reduced by Noise absorption screening technology Easy of Use Wide LED display using electric control Energy save Control Panel Additional function buttons High Temp Low Temp Buzzer Off Anti Crease Favourite Time Delay LED Display Time Display Indicator lamps Start Pause Program selector...

Page 7: ...TION 3 Panel Control Drawer Water container Door Cover Lower Grille 1 Drain Hose Assembly P No 5001EL2001A P No 3751EL1002B P No 5001EL2001C 2 Dryer Rack Assembly 3 Stacking kit Assembly Purchased Seperately Accessories ...

Page 8: ...unction will be remembered and processed Favourite If there is some cycle you would like to make based on your own drying habit use Favourite Once favourite cycle is stored you can repeatedly use next time before changing the stored setting For instance you turn power on and select Extra Dry in Cotton Cycle and Low temp and Anti Crease in series and then lastly press Favourite until the dryer beep...

Page 9: ...y not completely Light Dry work clothes Bed linen table linen towels T shirts For fabrics which do need to be ironed Iron Dry Polo shirts and work clothes Bed linen table linen towels For fabrics which do need to be pressed Machine Iron Time Cycles for selected length of time Bath towels bath robes dishclothes Small clothes pre dried laundry Normal Warm 20min Quilted fabrics made of acrylic Normal...

Page 10: ...ry 20 min 40 min Cool Air Rack Wool Delicate O O O O O O O O O O O X X X X O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O 121 117 115 109 103 101 123 87 79 20 40 20 40 73 69 O O O O O O O O O O O X X X X High Temp Low Temp Buzzer Off Anti Crease Time left Cottons Mixed Fabric Timer Special Fabric Course ...

Page 11: ...l adjust the front levelling legs up and down as necessary Turn them clockwise to raise and counterclockwise to lower until the dryer is not wobbling both front to back and side to side Diagonal Check When pushing down the edges of the washing machine the machine should not move up and down at all Please check both of two directions If machine rocks when pushing the machine top plate diagonally ad...

Page 12: ... purchased separately Condensate Drain The dryer can drain water without delivering to water container Water is directly pumped out of the dryer Stacking Kit In order to stack this dryer on a LG washing machine a stacking kit is needed Built in Installation Your dryer can be built in You can fit the dryer under counter in a kicken cabinet opening Opening dimensions are shown as follows For your sa...

Page 13: ...up of lime scale on the surface of sensor Wipe the sensors inside drum Shown in the picture 1 Unscrew cover 2 Take connecting kit out 3 Separate water container hose from the kit 4 Connect drain hose to the kit Condensed water Drain out Normally condensed water is pumped up to water container where water is collected until emptied Not only using water container but water can be drained out directl...

Page 14: ...ewdriver 2 When the door is revered the hand sticker on the door also must be replaced Do not use a machine screwdriver 4 Detach both hinge point covers 5 Unscrew two door hinges 6 Replace both hinge point covers where door hinge is located 1 Unscrew the bottom hinge of the door first and top hinge And then place on the blanket to prevent scratches 2 Remove the door lock cover 3 Remove the door lo...

Page 15: ...er of electric shock 1 Open the door put a hand into the drum and grasp a bulb cover 2 With bulb held by a hand turn the bulb to the clockwise direction with a certain amount of force 4 Remove the current bulb turning it to Counter clockwise direction Be careful that it does not fall off 5 Screw in the new bulb in the reverse unscrewing direction 3 Seperate bulb cover from the socket housing Do no...

Page 16: ... terminal Measure capacitance of Terminal to terminal Measure resistance of Terminal to terminal Measure resistance by pressing button When resistance becomes Resistance value 5Ω Safety Thermostat Cover Front Heater Resistance value 10KΩ 5 at 25 C Resistance value Yellow White 28 96 1Ω Blue White 56 29 2Ω Resistance value 200KΩ 5 at 25 C Resistance value White Blue 24 8 2 5Ω Blue Red 21 5 2 0Ω Cap...

Page 17: ...or switch knob open Terminal COM NC 1 3 Terminal COM NO 1 2 2 Door switch push Push Terminal COM NC 1 3 Terminal COM NO 1 2 Measure resistance of terminal to terminal Resistance value 1Ω Resistance value Resistance value Resistance value 1Ω The state that knob is Pressed is opposite to open condition Resistance value 80Ω 100Ω AC 230V 15W COM NC NO ...

Page 18: ... CONTROL LAY OUT 8 PWB ASSEMBLY DISPLAY LAY OUT PWB ASSEMBLY LAY OUT OPTION PART SEGMENT DISPLAY OP4 OP5 OP6 OP7 OP8 OP9 TD C70040E x x x x x x 18 88 6871EC1114 Option Part Op2 Op9 MODEL P NO Option Part ...

Page 19: ...18 WIRING DIAGRAM 9 ELECTRIC DRYER WIRING DIAGRAM Without ELB model With ELB model ...

Page 20: ...2 times 3 times 4 times Moisture data Temperature sensed by low temperature thermistor located under door Temperature sensed by High temperature thermistor located in heater assembly Remaining water data by water level sensor Check all leds for operation Motor run counterclockwise Displays Moisture Sensor Operation If moisture sensor is contacted with damp cloth The display number is below 180 in ...

Page 21: ... No buzzer Circuit breaker trip Low temperature LED SEG ON drum not Roating Door Open Rotating Lamp on Lamp Broken Connector malfunction Check Heater Power Thermostat trip Check thermistor open short Fan Properly Drying Error Mode LED displays in case of the door open The door must be closed and start Button must be pressed for re operation See the 22page Case 1 When black out or irregular current...

Page 22: ...r replace the power cord Check after pulling white 3 pin connector out from controller Check the range of white pin is within AC 215 245V Check connection of power cord and harness assembly Check white 1pin black 1pin of connector and secure that range is between AC 215 245V Check the short of harness assembly white and white wire and the connection WH3 In the case that the dryer is not working wh...

Page 23: ...closed lamp turns off When Start button is on the dryer is working When door is opened or closed door switch hook is not broken Check or replace Controller Assembly Replace Harness and connector With door closed check voltage of connector WH3 and YL3 which are pulled out from controller in advance The voltage range is between AC 215 245V Check Harness Check and replace Controller With door closed ...

Page 24: ...ontroller TR1 TR2 broken Check Capacitor volume See component test page See the left picture Check belt is burst Check structural restriction Check or replace Motor Check Motor TP Check Harness connection During operation motor noise is generated And drum and blower are not working With WH2 BL2 being unplugged from Controller WH2 BL2 resistance WH2 BL 2 resistance measurement ranges 18Ω 26Ω Check ...

Page 25: ...D3 disconnected from Controller WH3 RD3 resistance ranges 26Ω 32Ω WH3 RD3 resistance ranges 53Ω 59Ω Check and replace controller Relay RTY2 RTY3 See page 15 PCB assembly lay out Replace Heater Check Harness connection When check thermostat to Heater it is less than 1Ω Manually get Thermostat back Press button 1 Clean Condensing unit 2 Check if Lint filter is damaged or clogged Heater On Off occurs...

Page 26: ... mode when Pump is on Electric noise doesn t occur Electric noise doesn t occur while pumping Measure after power is off With YL2 disconnected from Controller YL 2 YL 2 resistance ranges 205 10Ω Check Pump sensor Check and replace Controller TR3 Disassemble Pump Check foreign objects Check impeller restriction Check connection hose clogged Check or replace pump Check Harness connection ...

Page 27: ...stance TH Heater TH1 TH2 TH Drum Dryer Temperature Resistance Remark 10 C 20 30 C 30 40 C 40 50 C 50 60 C 60 C 250 180kΩ 180 113kΩ 113 75kΩ 75 50kΩ 50kΩ 5 4kΩ 4 2 5kΩ 2 5kΩ 19 111kΩ 11 8kΩ 8 5kΩ 4 3 2 GN1 RD4 GN4 WH4 1 4 3 2 1 With CN1 RED4 CN4 WH4 disconnected from Controller check TH Heater CN4 CN4 resistance ranges table data according to surrounding temperature TH Drum CN1 CN1 resistance range...

Page 28: ... Failure Check Harness Check if Sensor tips have foreign objects Refer to the left picture Check Harness Open Connector is disconnected With metal tape attached to Sensor tips CN1 CN1 resistance is less than 10Ω After damp clothes touch Sensor tips the range are within the below table when QA test NO YES YES NO NO Check and replace Controller 4 3 2 GN1 RD4 1 With CN1 RED4 disconnected from Control...

Page 29: ...ate by unscrewing 2 screws on the rear of the dryer 2 After pulling drawer assembly out unscrew 1 screw 3 After releasing 4 hooks of control panel assembly separate connectors from PWB assembly for disassembling control panel assembly DRAWER TOP PLATE ...

Page 30: ... COVER SAFETY 1 1 Disassemble door assembly by unscrewing 2 screws 1 2 Disassemble lower cover by releasing hook 1 3 After releasing 2 levers disassemble safety cover 2 Disassemble 3 screws 3 Disassemble the case with a Philips driver by releasing hook ...

Page 31: ...IONS 12 1 Disassemble grille by releasing 3 hooks 2 Disassemble cabinet cover by releasing 9 screws 3 Disassemble cabinet by unscrewing 2 at the top and 3 at the rear left and right are the same GRILLE CABINET COVER CABINET ...

Page 32: ... 12 FRAME BODY HOLDER 1 Disassemble Body frame by unscrewing 4 screws 2 Disassemble Harness by unscrewing 2 Earth screws and disassemble connectors 3 Disassemble Holder and Spring by pressing down and pulling the low hook of holder ...

Page 33: ...s Note Make sure that hook is properly fit after assembling Cover Base Wrong assembly will cause abnormal noise 2 Disassemble Motor Supporter from Base by rotating after unscrewing 2 screws 3 1 Disassemble Air Guide Note Assembly direction of Air Guide should be same as belows Wrong assembly will cause abnormal noise ...

Page 34: ...Duct by unscrewing 3 Disassemble Nut by grasping the edge of left motor shaft at the same time DUCT Note marked 3 screws on the lower position of Duct are only used for molding parts Be careful of not using them for other holes Otherwise the holes will be exposed to water leak ...

Page 35: ...CTIONS 12 1 Disassemble Motor 2 Disassemble Capacitor by unscrewing Nut 3 Disassemble Heater Housing by detaching inner Connector harness and unscrewing 4 Disassemble Heater by unscrewing 2 screws HOUSING CAPACITOR HEATER ...

Page 36: ...35 DIASSEMBLY INSTRUCTIONS 12 FRAME TOP BASE COVER FRONT 1 Disassemble Frame Top by unscrewing 4 screws Left and right are same 2 Unscrew 4 screws at the left and right 3 Unscrew 1 screw at the front ...

Page 37: ...6 DIASSEMBLY INSTRUCTIONS 12 DISPENSER HOSE HOLDER COVER FRONT 1 Disassemble Cover Front by pulling the top area out 2 Disassemble Hose from hose holder at the base 3 Disassemble Dispenser by unscrewing ...

Page 38: ...37 DIASSEMBLY INSTRUCTIONS 12 1 Disassemble Back cover from the Base by unscrewing 2 screws 2 Disassemble Drum 3 Disassemble Drain Pump by unscrewing 2 screws BACK COVER DRAIN PUMP ...

Page 39: ...38 EXPLODED VIEW 13 Control Panel Top plate Assembly A100 A110 A111 A120 A160 A114 A115 A113 A112 A130 A140 A150 NON SVC Parts SVC Parts ...

Page 40: ...PLODED VIEW 13 Cabinet Cover Door Assembly B101 B105 B103 B104 B102 B106 B100 B141 B140 B121 B136 B120 B122 B123 B130 B131 B128 B150 B142 B129 B127 B126 B125 B134 B133 B132 B160 B124 NON SVC Parts SVC Parts ...

Page 41: ...40 EXPLODED VIEW 13 Base Motor Assembly C100 C120 C110 C130 C140 C141 C150 C142 C160 C180 C170 C200 C240 C230 C210 C220 C250 C260 C270 C280 C290 C310 C300 C191 C190 NON SVC Parts SVC Parts ...

Page 42: ...VIEW 13 Back Cover Drum Assembly D152 D210 D230 D155 D200 D190 D151 D157 D140 D160 D130 D170 D180 D131 D220 D201 D153 D156 D150 D154 D100 D110 D120 D121 JOURNAL BEARING SERVICE KIT D122 D123 NON SVC Parts SVC Parts ...

Page 43: ...42 REPLACEMENT PARTS LIST GASKET ...

Page 44: ...43 REPLACEMENT PARTS LIST ...