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WASHING MACHINE

SERVICE MANUAL      

MODEL :  GCWF1069CS1/GCWF1069CD1/GCWF1069QS1/

CAUTION

READ THIS MANUAL CAREFULLY TO DIAGNOSE

PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.

Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), 

publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you 

have obtained the prior written consent of the LG Electronics entity from which you received this Service 

Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this 

Service Manual.

Copyright © 2016 - 2017 LG Electronics Inc. All rights reserved. Only training and service purposes.

CONFIDENTIAL

GCWF1069QD1/GCWF1069CS3/GCWF1069CD3/

GCWF1069QS3/GCWF1069QD3

Summary of Contents for GCWF1069CD1

Page 1: ...ication copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual The material covered by this prohibition includes without limitation any text graphics or logos in this Service Manual Copyright 2016 2017 LG Electronics Inc All rights reserved Only training and se...

Page 2: ...ODE 19 8 3 HOW TO CHECK THE WATER LEVEL FREQUENCY 19 8 4 HOW TO CHECK THE RPM 19 8 5 ERROR DISPLAY 20 21 8 6 DISPENSER 22 9 DIAGNOSIS AND TROUBLESHOOTING 23 35 10 DISASSEMBLY INSTRUCTIONS 36 44 11 EXPLODED VIEW 45 48 11 1 CABINET CONTROL PANEL ASSEMBLY COIN TYPE 45 11 2 DRUM TUB ASSEMBLY 46 11 3 1 CABINET CONTROL PANEL ASSEMBLY FOR SINGLE MODEL 47 11 3 2 CABINET CONTROL PANEL ASSEMBLY FOR STACK MO...

Page 3: ...t of the washer or attempt any servicing unless specifically recommended in the user maintenance instructions or published user repair instructions that you understand and have the skills to carry out See Installation Instructions for grounding requirements ALWAYS follow the fabric care instructions supplied by the garment manufacturer Do not place items exposed to cooking oil in your washer Items...

Page 4: ...CIRCULATION MOTOR 45W FUSE 250V 12A Time Delay REVOLUTION SPEED WASH 45 rpm SPIN 1150 RPM Default 1150 RPM CYCLES 4 OPTIONS ADD SUPER WASH Cycle OPL Custom PGM OPERATIONAL WATER PRESSURE 20 120 psi 138 827 kPa CONTROL TYPE Electronic WASH CAPACITY 3 73 cu ft IEC 4 3 cu ft DIMENSIONS 686 mm W X 767 mm D X 983 mm H 1337mm D with door open DOOR SWITCH TYPE PTC Solenoid WATER LEVEL 10 steps by sensor ...

Page 5: ... be washed SEE THROUGH DOOR AND BIG DOOR You can see the laundry throughout the cycle Stainless steel drum offers extreme durability STAINLESS STEEL DRUM Magnetic Door Plunger Safely and conveniently secure the door slightly ajar with the magnetic door plunger This will promote air circulation and allow the interior of the machine to dry To use this feature after the load has been removed do not c...

Page 6: ...6 ...

Page 7: ... 767 mm D X 983 mm H 1337mm D with door open 27 W X 30 3 16 D X 3811 16 H 525 8 D with door open Weight 190 lbs 87 kg Wash capacity 3 73 cu ft IEC 4 3 cu ft Spin speed 1150 rpm max Permissible water pressure 20 120 psi 138 827kPa Back of Washer Specifications subject to change by manufacturer Note Accessories Hot and Cold Water Hoses Elbow Bracket for securing drain hose Tie Strap for securing dra...

Page 8: ... appliance must be properly grounded for personal safety Properly ground washer to conform with all governing codes and ordinances Failure to follow this warning can cause serious injury fire electric shock or death Do not install the washer in humid spaces to reduce the risk of electric shock Failure to follow this warning can cause serious injury fire electric shock or death The base opening mus...

Page 9: ...ional clearances might be required for wall door and floor moldings Additional spacing of 4 10 cm on back 1 2 5 cm on all sides of the washer is recommended to reduce noise transfer Companion appliance spacing should also be considered Minimum installation spacing for recessed area installation Front view Side view 52 5 8 133 7 cm 30 3 16 76 7cm 30 3 16 76 7 cm 52 5 8 133 7 cm 30 3 16 76 7cm 30 3 ...

Page 10: ... ΊΖΝΝΠΨ ྜ ΣΖ ΈΒΤΙ ΣΒΟΘΖ ྜྷ ͳΣΠΨΟ ྠ ͳΝΒΔΜ 1 2 3 4 5 8 Skip Auto dosing interface Back of Washer Wire Color Black Jump wire signal Red Main Wash signal Blue Bleach signal Yellow So ener signal Orange Pre Wash signal Brown Not Used signal 1 2 3 4 Dosing time should be set according to the flow rate of the pump We recommend not exceeding 30mL for detergent and 50mL for Bleach Softener Refer to detergen...

Page 11: ... tile surfaces are not recommended Never install the washer on a platform or weakly supported structure NOTE A firm solid floor is even more critical to a front loading washer than to a top loader If your floor is wood and or frame construction you may need to reinforce it Front loaders use substantially faster spin speeds than top loaders causing greater vibration If the floor is not solid your w...

Page 12: ...with a load Use the wrench supplied to adjust the feet until there is no vibration Then tighten the lock nuts to prevent further adjustment NOTE If there is vibration and noise during the spin cycle re check the leveling of the washer adjust the feet as required and tighten the lock nuts securely to prevent changes in adjustment Run the washer with a test load to make certain your washer is proper...

Page 13: ... the water supply hoses Most appliances recommend they be placed upon a dedicated circuit that is a single outlet circuit which powers only that appliance and has no additional outlets or branch circuits Check the specification page of this owner s manual to be certain Do not overload wall outlets Overloaded wall outlets loose or damaged wall outlets extension cords frayed power cords or damaged o...

Page 14: ... the drain hose at a sink secure it so it cannot break away and cause flooding and damage The drain hose should not be placed higher than 96 in from the bottom of the washer Properly securing the drain hose will protect the floor from damage due to water leakage Properly securing the drain hose will protect the floor from damage due to water leakage about 45 1 1m about 70 1 8m about 55 1 4m max 39...

Page 15: ...URES Coin type GCWF1069QS1 GCWF1069QS3 Card OPL Type GCWF1069CS1 GCWF1069CS3 GCWF1069CD1 GCWF1069CD3 1 2 5 4 3 Coin type GCWF1069QD1 GCWF1069QD3 1 2 5 4 3 1 Display LED 2 Cycle button 3 Optional function button 4 Start Pause button 5 Status LED ...

Page 16: ...es and conditions Hot Use for hot washing for heavy fabrics such as white clothes table linens and heavily soiled clothes Warm Use for warm washing for heavy fabrics such as jeans corduroys or work clothes Cold Use for cold washing for sturdy fabrics such as casual work Delicates Use for cold washing for synthetic fabrics such as washable knit fabric and no iron finishes Start Pause button Display...

Page 17: ...stomized cycle program can be used Only available in OPL type 17 CYCLE Fabric Type Wash Rinse Temp Hot Cotton Linon Towels Shirts Sheets Hot Cold Warm Mixed Loads Work Clothes Jeans Shirts Warm Cold Cold Dress Shirts Pants Wrinkle Free Clothing Poly Cotton Blend Clothing Tablecloths Cold Cold Delicates Dress Shirts Blouses Nylons Sheer or Lacy Garment Cold Cold ...

Page 18: ...n I Spin J Wave F orce K Water Supply L Tumble rt G H J M Drai n N Intermi ent Spin O Spin O Disenta ngle CCCC Super Wash Non st op Wash Rt tSSd High Middle Low 5 15 High Middle Low SPCt Uut both X O High Middle Low 8 16 High Middle Low 0 1 2 3 4 5 6 Hot 1 2 4 1 3 2 2 12 3 13 3 1 3 0 1 1 3 2 1 9 2 9 1 3 6 5 5 4 2 2 2 1 Wash 8 Rinse 17 Spin 11 Total 36 Warm Cold Delicate 0 3 Wash 8 Rinse 17 Spin 11...

Page 19: ...tch 3 5 Door Switch 2 6 Main Valve PIN3 CardReader 1 CARD TX 2 CARD TX 3 CARD RX 4 CARD RX 5 VCC 6 G BL4 E suds 1 TX 2 TX 3 RX 4 RX NA2 1 G 2 VCC 5V 3 4 Thermistor 5 G 6 Pressure Switch 7 Pressure Switch 8 G PIN2 Coin 1 5V 2 COIN1 3 G 4 COIN 2 5 G 6 COIN BOX 7 COIN SVC 8 G 9 16 5V CON1 1 RX 2 TX 3 G 4 12V 5 5V 6 Boot 7 Reset GR Motor Stator Control 1 U 2 V 3 W PCB Layout Main ...

Page 20: ...ou check the water level the first digit is a 0 which means 2 A display indicating 041 is a water level frequency of 241 multiplied by 0 1 KHz for an actual frequency of 241 KHz Number of times the START button is pressed y a l p s i D t n i o P k c e h C None 1 time 2 times 3 times 4 times 5 times 6 times 7 times 8 times 9 times 10 times 12 times 13 times 14 times 15 times 16 times Turns on all l...

Page 21: ...12 minutes The load is too small The appliance is tilted Laundry is gathered to one side Non distributable things are put into the drum Not fully drained within 3 minutes Water is overflowing water level frequency is over 213 If is displayed the drain pump will operate to drain the water automatically The SENSOR SWITCH ASSEMBLY is out of order Is the door opened or not completely closed Door lock ...

Page 22: ... the MOTOR HARNESS and the MAIN PWB ASSEMBLY is bad or unstable The MOTOR HARNESS between the STATOR ASSEMBLY and MAIN PWB ASSEMBLY is cut open circuit 7 LOCKED MOTOR ERROR Disconnection of Card Reader Wire 9 CARD READER ERROR EEPROM is out of order Displayed only when the START button is first pressed in the QC Test Mode 8 EEPROM ERROR Thermister is opened or shorted 10 Thermistor ERROR ...

Page 23: ... a place for pre wash and Main wash detergent fabric softener and bleach Powdered or liquid detergents may be used but softener and bleach must be liquids Detergents should carry the HE designation Do not use regular detergents in the washer or overusing will occur Regular detergents also cause a scum build up in the tub which leads to poor performance and a foul odor Single model Stack model HOT ...

Page 24: ...e supplied voltage 120V 60H z Is the voltage between the FIL TER ASSE MBL Y connectors and 120V 60Hz Is the LED lamp on Are the connectors on the PWB loose Is wire of the DIS PLA Y PWB ASSE MBL Y broken R eplace DIS PLA Y PWB ASSE MBL Y or repair wire Check the fuse or reset the circuit breaker R eplace the FIL TER ASSE MBL Y CIR C Check fuse single harness and replace if blown O therwise replace ...

Page 25: ...25 t n i o P k c e h C m o t p m y S 1 NO POWER 1 Check Electric Wiring 2 Check the customer s outlet 3 Check Noise Filter 4 Che 5 Check External Fuse Single Harness ck LED on in Main PWB ...

Page 26: ...26 AC 120V 60Hz 20 ...

Page 27: ... 2 Bleach 1 2 NA4 3rd YL1 3rd 0 8 1 2 Hot 1 2 NA4 4th YL1 3rd 0 8 1 2 t n i o P k c e h C m o t p m y S 1 INLET VALVE ERROR 1 Check Electric Wiring 2 Check Inlet valve s Resistance 3 Check Inlet valve clogged 4 Voltage of the inlet valve s connector Valve running 120Vac 5 Hot Softener Main Bleach NA4 YL1 ...

Page 28: ...eplace the MAIN PWB ASSEMBLY Is the drain hose twisted or frozen Is the connector disconnected or disassembled Is the coil of the drain pump too high or low resistance of the coil is 10 20 Ω When checking voltage between connectors and during drain is the voltage AC 120V 60Hz as in the figure OE ERROR DRAIN TROUBLE ...

Page 29: ...ck drain pump s Resistance 3 Check drain line clogged 4 Voltage of the drain pump s connector Pump running AC 120V 60Hz Stopped pump motor 0 1Vac Drain pump Circulation pump Pump Main PWB Resistance Drain 1 2 YL1 1st YL1 3rd 10 20 Circulation 1 2 NA4 2nd YL1 3rd 18 30 1 ...

Page 30: ...30 ...

Page 31: ...y S 1 PRESSURE SENSOR ERROR PE 1 Check Electric Wiring 2 Check Pressure sensor s Resistance 3 Check Air chamber and Tube clogged Pressure Sensor 3 2 1 Pressure Sensor Main PWB Resistance 1 3 NA2 5th NA2 7th 21 23 10 NA2 X Y Z X Y Z _ _ ...

Page 32: ...32 dE1 dE2 dE1 dE2 ...

Page 33: ...stance 4 Check Voltage of Door switch s connector Door switch Type1 Result Remarks 2 4 700 1500 At 77එ 25 3 4 65 85 At 77එ 25 4 5 Infinity 2 4 120 Vac Voltage Input O P OZP O P OYP Door switch Type2 Result Remarks 2 4 700 1500 At 77එ 25 3 4 90 120 At 77එ 25 With Latch Infinity Without Latch 4 5 Infinity 2 4 Voltage Input 120 Vac ...

Page 34: ...34 ...

Page 35: ... the wiring Clean the CAPand DRAWER DETERGENT SOFTENER BLEACH DOES NOT FLOW IN ABNORMAL SOUND Secure the bolt Replace the STATOR ASSEMBLYor ROTOR ASSEMBLY Is the motor bolt loose Is there friction noise coming from the motor Detergent CAP Put it in the correct compartment Single model Stack model ྙGBleach ྚ Softener ྛ Detergent ྙGWash Compartment ྚ Liquid chlorine Bleach Compartment ྛ Liquid fabri...

Page 36: ...re sensed the suds removing implementations such as drain water input and pause will operate without rotating the drum Cleaning the Dispenser The dispenser should be cleaned periodically to remove buildup from detergent and other laundry products Is sheet detergent used YES YES Is the 1 Remove the sheet detergent from the dispenser Clean the dispenser 2 WATER OVERFLOW FROM THE DRAWER OR DISPENSER ...

Page 37: ...SSEMBLY Pull out the CONTROL PANEL Do not pull out the CONTROL PANEL too forcefully as it can be broken 3 Disconnect the DISPLAY PWB ASSEMBLY connector from CABLE HARNESS 1 Disassemble the CONTROL PANEL ASSEMBLY 2 Unscrew the 4 screws from the CONTROL PANEL ASSEMBLY 3 Disassemble the DISPLAY PWB ASSEMBLY ...

Page 38: ...OP PLATE backward forcefully 5 Lift the TOP PLATE Stack model Single model 1 Disassemble the LID OUT ASSEMBLY Remove 4 rubber caps Unscrew the Frame 4point 2 Disassemble the CONTROL PANEL ASSEMBLY refer to previous page WARNING When you disassemble the top plate be sure to take gloves and careful plate s edge Failure to do so can cause serious injury ...

Page 39: ...H ASSEMBLY 4 Remove all wire from hooks 5 Detach fuse from Protective Cover fit fuse into holder on Cover when reassembling 6 Remove the Protective Cover 7 To replace FUSE ASSEMBLY disconnect fuse connector from MAIN PWB ASSEMBLY and change with new FUSE ASSEMBLY 8 Disconnect the connectors 9 Unscrew 1 screw on the back 10 Disassemble the MAIN PWB ASSEMB LY ...

Page 40: ... the lower side of DISPENSER 1 Disassemble the CONTROL PANEL ASSEMBLY Refer to page 37 2 Disassemble the TOP PLATE ASSEMBLY Refer to page 38 3 Disassemble the 4 connectors from theVALVES 4 Disassemble the clampsand hoses 5 Unscrew the 2 screws in the back Connector Color ྙ Red Housing OR BK ྚ White Housing WH BK ྛ Blue Housing GY BK ྜ Red Housing BL BK DISPENSER ASSEMB LY Clamp DISPENSERASSEMBLY C...

Page 41: ...en the DOOR 3 Disassemble the CLAMPASSEMB LY 4 Unscrew the 5 screws from the CABINETCOVER 5 Unscrew the screw from CAP COVER 6 Unscrew the screw from inside CAP COVER 7 Put a flat screwdriver or putty knife into both sides of the CAP COVER and pull it out 3 CAP COVER ...

Page 42: ...embling the CABINET COVER connect the connector 11 Lift and separate the CABINET COVER 8 Unscrew the screw from the lower side of the CABINET COVER 1 Disassemble the CABINET COVER refer to previous page 2 Disassemble the CLAMP ASSEMBLY 3 Disassemble the GASKET TUB GASKET CLAMP nhzrl ...

Page 43: ...E COVER 4 Unscrew a screw from the lower side of DOOR 5 Lift door and remove HINGE COVER 1 Open the DOOR and disassemble the CLAMP ASSEMBLY 2 Unscrew the 2 screws 3 Remove connector from DOOR S W ASSEMBLY DOOR SWITCH ASSEMBLY CLAMP ASSEMBLY Be careful The door is heavy NOTE Reconnect the connector after replacing the DOOR SWITCH ASSEMBLY ...

Page 44: ...44 refer to page 41 refer to page 37 refer to page 38 HEATER THERMISTOR the thermister connector Thermistor ...

Page 45: ...crew from the bracket 5 Remove the 6 bolts on the stator 6 Unplug the connector from the STATOR 1 Disassemble the CABINET COVER or BACK COVER 2 Disassemble the damper hinges from the tub and base 3 Separate the dampers NOTE Do not re use an old damper pin Always replace it with a new one 6WDWRU EROWV RQQHFWRU UDFNHW ...

Page 46: ...156 A153 A131 A151 A130 A140 A133 A310 A300 A303 A200 A220 A102 A103 A104 A105 A155 A440 A100 A101 A390 A450 F110 F214 F212 F210 A106 A201 A150 A154 A110 A141 M410 GCWP1069QD1 GCWP1069QD3 GCWP1069QS1 GCWP1069QS3 GCWP1069CS1 GCWP1069CS3 GCWP1069CD1 GCWP1069CD3 A117 A107 A480 A430 ...

Page 47: ...0 F145 F468 F463 F464 K516 K520 K550 K121 K125 K122 K190 F465 F315 K610 K611 F310 K105 F461 K540 K350 K360 K123 K143 K361 K340 K344 K346 K342 K110 K111 K140 K571 K142 K572 K570 K320 K510 K512 K131 K135 K141 K115 K117 K530 K130 F360 F365 K345 ...

Page 48: ...48 11 3 1 DISPENSER ASSEMBLY FOR SINGLE MODEL F432 A275 A276 F130 F120 F441 F430 F160 F170 F300 F324 F327 F326 F462 F329 A160 F301 A161 M500 F323 M505 M506 F121 F122 ...

Page 49: ...49 11 3 2 DISPENSER ASSEMBLY FOR STACK MODEL F432 F326 F324 F321 F327 F226 F340 F329 F300 F220 F130 F120 F441 F430 F160 F170 F462 M500 F323 M505 M506 F121 A275 A276 F122 ...

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