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LG F1*20TD(1~9) Series, Service Manual

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LG F1*20TD(1~9) Series Service Manual Download Page 1

WASHING MACHINE

SERVICE MANUAL

CAUTION

READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE
CORRECTLY BEFORE OFFERING SERVICE.

MODEL : F1*20TD(1~9) / F1*22TD(1~9) / WF-770**TD

website : http://biz.lgservice.com
e-mail : http://LGEservice.com/techsup.html 

Summary of Contents for F1*20TD(1~9) Series

Page 1: ...E SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE MODEL F1 20TD 1 9 F1 22TD 1 9 WF 770 TD website http biz lgservice com e mail http LGEservice com techsup html ...

Page 2: ...FEB 2007 PRINTED IN KOREA P No MFL30574749 ...

Page 3: ... KNOW THE WATER LEVEL FREQUENCY 19 7 4 ERROR DISPLAY 20 7 5 TROUBLESHOOTING WITH ERROR 21 IE Water Inlet Error 21 UE Unbalanced Error 22 OE Water Outlet Error 23 FE Flow over Error 25 PE Pressure Sensor S W Error 26 DE Door open Error 27 tE Thermistor Heating Error 28 LE Motor Lock Error 29 8 TROUBLESHOOTING WITHOUT ERROR CODES 31 PF Power Failure or no power 31 Vibation Noise in spin 32 Detergent...

Page 4: ... LOCK AUTO RESTART ELECTRICITY CONSUMPTION WASHING SPIN 1400rpm DRAIN MOTOR WASH HEATER REVOLUTION SPEED WASH SPIN F10 TD F12 TD F14 TD No Spin 1000 rpm No Spin 1200 rpm No Spin 1400 rpm 50rpm 0 3 10kgf cm 2 30 1000kPa Electronic Cotton 8kg Max 600mm W x550mm D x850mm H Bi Metal type 9 steps by sensor From 3 hours to 19 hours Available Available Available 10 items Available Available Available 135...

Page 5: ...Lock system has been developed to prevent children from pressing any button except Power button to change the programme during operation Low noise speed control system By sensing the amount of load and balance this system automatically distributes load evenly to minimize the spinning noise level Direct Drive System The advanced Brushless DC motor rotates the drum directly without a belt and a pull...

Page 6: ...ine the water level in the tub When the preset water level reached water supply is stopped and the program proceeds Water needs to be below a preset level before spining will proceed water temperature washing time rinse time the best washing performance spin rhythm time laundry amount FUZZY LOGIC selected washing temperature SENSING EFFECT PROCESSING DETERMINATION 2 4 THE DOOR CAN NOT BE OPENED Wh...

Page 7: ...Filter Drain Plug Lower cover cap If the supply cord is damaged it must be replaced by the manufacturer or its service agents or a similarly qualified person in order to avoid a hazard ACCESSORIES Inlet hose 1EA Option Hot Cold 2EA Spanner Drum Lower cover For datergent and fabric softener ...

Page 8: ...e feet Clean the floor and there should not be any foreign objects under the feet If the unit has foreign objects underneath the feet this will prevent the unit from being leveled properly and will cause vibrations and slipping Remove any foreign objects if any from underneath the machine and level unit properly See below for examples of foreign objects 1 Open the box and check appliance condition...

Page 9: ... upper connector up till the rubber packing is in tight contact with the tap Then tighten the 4 screws 3 Connect the water supply hose to the middle connector pushing the plate down In case the diameter of the tap is large remove the guide plate Turn the middle connector not to have water leaked Make sure that the rubber seal is inside the hose connector To separate the water supply hose from the ...

Page 10: ...or could be coming from the standpipe This odor can come up the drain hose and into the unit Pour a cup or two of bleach or vinegar down the home drain and let it sit for 24 hours before running another cycle This will help eliminate odor from the home drain If a cycle is started too soon after doing this it will not help the issue Connect the power plug to the wall outlet Avoid connecting several...

Page 11: ...t until there is no gap between floor and foot And only use adjustment rubber when difference at the leg adjustment is more than 10mm Place your right hand on the back right corner and your left hand on the front left corner of the unit then attempt to rock the unit from corner to corner Then move your right hand to the front right side and your left hand to the back left corner and attempt to roc...

Page 12: ...k automatic reverse turn 4 Check the water supply Check if water is supplied through the detergent dispenser 7 Check drain and spin Power off and then power on Turn on Spin lamps after pressing the Start Pause button and Start the machine again Check drain and spin Power off and then power on Check if the door can be opened after Door Lock lamp turns off 8 Power off and open the door 9 Water remov...

Page 13: ...e than 3 seconds Tub Clean Tub Clean course can be set by pressing and holding Intensive and Crease Care button simultaneously Tub Clean is special cycle to clean the inside of the washer Option Medic Rinse Function that offers more purity in rinse operation by maintaining the optimum temperature for elimination of remnant detergent It can be selected in all courses with the exception of Quick 30 ...

Page 14: ...e button to turn power on and off Press the button to cancel the time delay LOAD TEST MODE Page 19 Press and Hold Temp Spin buttons and then press Power button Water level frequency Press and Hold Temp Medic Rinse buttons simultaneously 13 Spin Button By pressing the Spin Button the spin speed can be chosen F10 TD 1 9 Rinse Hold No spin 400 800 1000 F12 TD 1 9 Rinse Hold No spin 400 800 1200 F14 T...

Page 15: ...le The power turns off automatically 4 minutes after the pause button is pressed Power button Press the button to turn power on and off Press the button to cancel the delay finish 14 5 2 F1 20TD 1 9 Option button Pre Wash Use this option for loads that need pretreatment It add 16 minutes pre wash and drain Rinse Spin Use this option to rinse and then spin Soaic Use this mode to wash normal clothes...

Page 16: ...imultaneously Tub Clean is special cycle to clean the inside of the washer Water temperature selector Press the button to select water temperature 95 C is selected for Cotton and Baby Care only By pressing the button while operating the washer the present temperature is displayed LOAD TEST MODE Page 19 Press and Hold Option Spin buttons and then press Power button Water level frequency Press and H...

Page 17: ...6 1 1 1 1 1 2 2 2 6 3 1 4 5 2 6 3 1 4 1 2 1 2 1 2 1 1 1 2 2 2 3 S G S 3 1 2 1 2 1 2 3 1 2 3 2 2 2 1 1 1 3 2 1 5 4 2 3 1 5 4 2 3 GND Ha Hb 1 3 2 1 3 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 3 1 2 3 1 2 3 1 2 3 1 1 1 2 3 1 2 3 1 NOISE FILTER POWER CORD WASHIG HEATER DRAIN PUMP DOOR LOCK S W INLET VALVE INLET VALVE THERMISTOR PRESSURE SENSOR THERMISTOR PRESSURE SENSOR Motor H O T W V U P R E PTC M A I N P R E M...

Page 18: ...e Just check cut off Heater Thermistor 44 53KΩ 25 C Pressure Switch Common Drain Pump Door Inlet Valve Door Switch Measure R impossible here Common Motor Hall Sensor V U U W W V R 8 11Ω V U W Hb 5 15kΩ Ha 5 15kΩ Common Drain Pump 160 177Ω Pre Valve 3 5 4 5kΩ Main Valve 3 5 4 5kΩ Heater 24 7 28 0Ω PCB Power ...

Page 19: ...18 Program Chart ...

Page 20: ...and then buzzer will sound 4 Press the Start Pause button repeatedly to cycle through the test modes 1 2 3 4 5 6 None 1 time 2 times 3 times 4 times 5 times 6 times 7 times 8 times 9 times 10 times All lamps turn on Clockwise spin right Low speed Spin High speed Spin Inlet valve for pre wash operation Inlet valve for main wash operation Hot inlet valve in case of hot water fill Inlet valve for mai...

Page 21: ...Water is automatically being pumped out because too amuch water is in the tub Page 25 PRESSURE SENSOR S W ERROR 5 The sensor pressure switch is out of order Page 26 DOOR OPEN ERROR 6 The Start Pause button is pressed with the door open The door switch is out of order Page 27 THERMISTOR HEATING ERROR 7 The thermistor is out of order Page 28 POWER FAILURE 10 The washer experienced a power failure CU...

Page 22: ...requency over 25 5KHz Reconnect or repair the Connector Or replace the Harness Replace the Inlet Valve Is the Connector connected correctly to the Main PCB and the Inlet Valve Or is the Harness alright Check the Air Chamber and the Tube clogged And When you check the water level frequency again if it is over 25 5KHz you replace the Pressure switch YES YES NO NO Replace the Main PCB NO YES YES NO N...

Page 23: ...ly Page 7 Is the laundry mixed The few items of clothing will clump together and their weight will be in one place on the drum throwing the weight off during spin mode So add some laundry to overcome UE error And rearrange load to allow proper spinning Try rearranging the laundry in drum Or the laundry is separated by size type and color Separate by size type and color YES YES NO NO YES ...

Page 24: ...prevents proper drainage but also will promote bacteria growth and cause odors This drain filter should be cleaned once a month How to disassemble and clean pump filter Open the Cover by coin or finger only new model Cover Drain water by removing the hose cap Disassemble the pump filter by turning the filter cap counterclockwise Filter clogged by foreign objects Assemble close cap Pump Filter filt...

Page 25: ...o drain out water adequately if the standpipe exceeds 1 0 m In this case water may flow back into the washer Check the Air Chamber and the Tube clogged And When you check the water level frequency again if it is over 25 5KHz you replace the Pressure switch YES YES NO Reconnect or repair the Connector Or replace the Harness NO Replace the Main PCB NO Replace the Pump Motor Is the resistance of the ...

Page 26: ...Khz or 26 1Khz Or does not the water level over reference line and is the water level frequency 25 5Khz or 26 1Khz F1 22TD Press Temp and Medic Rinse F1 20TD Press Intensive Replace the Inlet Valve assembly YES If FE is displayed again then replace the Pressure Switch If FE is displayed again then replace the Main PCB Check the Air Chamber and the Tube clogged NO NO YES Over Flow Error FE ...

Page 27: ...in PCB and the Pressure Switch Or is the Harness alright Reconnect or repair the Connector Or replace the Harness Check air chamber and remove the foreign material Replace the Pressure Switch YES YES NO Is the resistance of the Pressure Switch out of range Pin1 Pin3 21 23Ω NO NO YES Pressure Sensor S W Error PE ...

Page 28: ...witch NO Does the Spring of Latch Hook actuate Door Open Error dE YES YES YES NO Scratch by Latch Hook Touching or Is the Connector connected correctly to the Main PCB and the Door Switch Or is the Harness alright Does the Door Switch operate as follows Door Locking time 1 8 sec Check the time between from input the power to parts move up then Door locked Door Releasing time 25 100 sec Check the t...

Page 29: ...ight Reconnect or repair the Connector Or replace the Harness Replace the Thermistor YES Replace the Heater YES NO Is the resistance of the Heater out of range 24 7 28 0Ω Page 17 Note Thermistor Spec NO NO Thermistor Heating Error tE S P E C Temp 30 C 40 C 60 C 70 C 95 C 105 C Resistance kΩ MIN 36 35 39 45 42 72 24 20 26 05 27 97 11 43 12 12 12 82 8 088 8 514 8 940 3 544 3 791 4 045 2 617 2 816 3 ...

Page 30: ...g the hall sensor Is the Connector connected correctly to the Main PCB and the Motor Or is the Harness alright YES NO YES YES YES YES NO Disassemble the Rotor Are the Magnet of rotor cracked or broken Ha Common 5 15 kΩ Hb Common 5 15 kΩ Replace the Main PCB Press the Power button Start Pause button Does the Drum stop when the start pause button is pressed to start the cycle Or Sometimes does the D...

Page 31: ...the hooks of stator as picture red circled 2 Push down the Hall sensor and assemble to the hook for sure Caution If you disassemble by force not following the directions the hooks of stator red circled might broke up Hence need change of stator assembly So disassemble cautiously 1 Assemble the Hall Sensor 2 Note Hall Sensor Part No 24 25 6501KW2001A 27 6501KW2002A ...

Page 32: ...y PCB Is the Connector connected correctly to the Main PCB and the Noise Filter Or is the Harness alright Noise Filter PCB Reconnect Power Plug firmly Check the fuse or reset the circuit breaker Don t use Multi plug socket Use Single Plug socket for washing machine YES YES Reconnect or repair the Connector Or replace the Harness Check connectors otherwise Replace Display PCB Check and replace Main...

Page 33: ... Vibration Noise In Spin Have all the Transit Bolts and the Base Packing been removed NO Remove the Transit Bolts and the Base Packing Washer Base Packing Packing Support YES Refer to INSTALLATION Page 7 ...

Page 34: ...ompartment of the drawer NO Refer to Water Inlet Error IE page 21 NO Put it in the Correct Position Reference Amount of Detergent Softener Detergent NO OK YES YES Is water supplied Is the Detergent caked or hardened Main Wash Powder Pre Wash Powder Only softener YES Softener YES Main Wash Powder Pre Wash Powder Only softener ...

Page 35: ...artment of the drawer NO Put it in the Correct Position Replace the Dispenser Tray Reference Amount of Detergent Softener Detergent NO OK Is the Dispenser Tray Damaged or warped 1 Water Leak from Dispenser Is the Detergent caked or hardened Main Wash Powder Pre Wash Powder Only softener Softener YES YES NO ...

Page 36: ...cked split Replace the damaged parts Replace the Inlet Hoses Clean the periphery of Gasket and Door regularly 3 Unknown Water on Floor YES Is the washer horizontal Adjust the height of washing machine to be kept horizontally Page 7 NO Are the drain filter and manual drain hose open YES NO Check Turn the filter cap clockwise to close YES YES NO ...

Page 37: ...f the top plate 2 Pull the top plate backward and upward as shown 1 Disconnect the PWB assembly connector from Main lead wire assembly 2 Pull out the drawer and unscrew 2 screws 3 Push upper hooks down on the top and pull the control panel 1 Disconnect the PWB assembly Main Display from control panel by unscrewing 7 screws PLATE ASSEMBLY TOP PANEL ASSEMBLY CONTROL Hook ...

Page 38: ...Pull out the drawer to arrow direction 3 Unscrew 2 screws 1 The hose clamps and the hose are disassembled 1 The ventilation bellows and the water inlet bellows are disassembled on the tub DISPENSER ASSEMBLY DISPENSER ASSEMBLY PUSH DRAWER Option ...

Page 39: ...he lower cover cap by using coin and pull out the lower cover to the arrow direction after a screw is unscrewed VALVE 1 MAIN VALVE 2 PRE VALVE 3 HOT White Black Black Gray White Black Blue Red Black DOOR 1 Open the door completely 2 Remove the two screws from the hinge When removing the door assembly it is necessary to hold the bracket that is inner of the cabinet cover 3 1 2 ...

Page 40: ...cover cap and unscrew 1 screw inside 1 Disassemble the control panel page 24 2 Unscrew all the screws on the upper and lower sides of the cabinet cover 1 Take apart the tub gasket clamp 2 Make sure that the drain hole of the gasket is put beneath when reassembling the gasket efer to the arrow mark on the tub cover GASKET ASSEMBLY ...

Page 41: ... hinge pressing its snap 2 Do not use the pulled out hinge again It may be taken off during operation ROTOR ASSEMBLY STATOR ASSEMBLY FRICTION DAMPER ASSEMBLY Rotor Bolt 1 Hinge Damper Damper ROTOR ASSEMBLY STATOR ASSEMBLY DAMPER V U 8 11Ω U W 8 11Ω W V 8 11Ω Note Hook of connector 1 is on the backside Motor Stator U V W Common Ha 5 15kΩ Common Hb 5 15kΩ Hall Sensor Ha Hb Common ...

Page 42: ... screws 6 Remove the pump HEATER 1 Loosen the M6 heater nut to pull out the heater CAUTION When mounting the heater be sure to insert the heater into the heater clip on the bottom of the tub Tub Pump Bellows Pump Outlet Hose Rating 220 240V 2000W Resistant 24 7 28 0Ω Rating 220 240V 50HZ 30W Resistant 160 177Ω M6 heater nut ...

Page 43: ...IS STUCK BETWEEN DRUM AND TUB 1 Remove the heater 2 Remove the foreign material wire coin and others by inserting a long bar through the hole Just check cut off Check the operating time Door Locking time 1 8 sec Check the time between from input the power to parts move up then Door locked Door Releasing time 25 100 sec Check the time between from off the power to parts move down then Door released...

Page 44: ...PLODED VIEW OF CABINET ASSEMB LY 10 EXPLODED VIEW A150 A152 A140 A153 A151 A134 COLD BLUE HOT RED A303 A133 A130 A131 A141 A154 A110 A101 A100 A430 A485 A440 A102 A104 A103 A410 A200 A300 A310 A201 A220 A276 A275 ...

Page 45: ...F321 F462 F300 F225 F220 F120 F215 F210 F110 A450 F441 F430 F432 F160 F464 F310 10 2 THE EXPLODED VIEW OF CONTROL PANEL DISPENSER ASSEMBLY F170 ...

Page 46: ...DRUM TUB ASSEMBLY K351 K350 K360 K143 K123 K122 K121 K125 K320 K105 K610 K611 K115 K131 K530 K135 K130 F140 K411 K410 F320 F466 K111 K110 K141 K140 K510 K340 K344 F468 F461 F467 K346 K342 K520 K540 K550 K570 K571 K572 K170 F145 ...

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