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LG WD-14120(5)RD Service Manual

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WASHING MACHINE

SERVICE MANUAL

CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-14120(5)RD
WD-12120(5)RD
WD-10120(5)RD

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  Summary of Contents for LG WD-14120(5)RD

  • Page 1: Washing Machine

    WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE. MODEL : WD-14120(5)RD WD-12120(5)RD WD-10120(5)RD...
  • Page 2 MAY. 2003 PRINTED IN KOREA P/No.:3828ER3018M...
  • Page 3: Table Of Contents

    CONTENTS 1. SPECIFICATION..........................3 2. FEATURES & TECHNICAL EXPLANATION ................4 3. PARTS IDENTIFICATION ......................6 4. INSTALLATION ..........................7 5. OPERATION ..........................10 6. WIRING DIAGRAM / PROGRAM CHART ...................12 7. TROUBLE SHOOTING........................13 7-1.BEFORE SVC CHECKING ....................13 7-2.QC TEST MODE........................13 7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY............13 7-4.ERROR DISPLAY ........................14 8.
  • Page 4: Specification

    1. SPECIFICATION ITEM WD-14120(5)RD / WD-12120(5)RD / WD-10120(5)RD POWER SUPPLY 220V-240V~, 50HZ PRODUCT WEIGHT 71kg WASHING 140W ELECTRICITY SPIN 300W CONSUMPTION FAN MOTOR DRAIN MOTOR WASH HEATER 2000W DRY HEATER 2100W WASH 45rpm REVOLUTION SPEED SPIN 14120(5)RD 400/800/1000/1400 rpm WD-12120(5)RD...
  • Page 5: Features & Technical Explanation

    2. FEATURES & TECHNICAL EXPLANATION 2-1.FEATURES ■ Automatic process from washing to drying. Automatic process from washing to drying can be selected easily. Washing capacity : 7.2 kg (Cotton) Drying capacity : 3.6 kg (Cotton) ■ More economical by Intelligent Wash System Intelligent Wash System detects the amount of load and water temperature, and then determines the optimum water level and washing time to minimize energy and water consumption.
  • Page 6: Water Level Control

    2-2.DETERMINE WASHING TIME BY FUZZY LOGIC To get the best washing performance optimal time is determined by sensing of water temperature, selected washing temperature and laundry amount. water temperature washing time the best selected FUZZY washing washing rinsing time temperature LOGIC performance spin rhythm, time...
  • Page 7: Parts Identification

    3. PARTS IDENTIFICATION Power plug If the supply cord is damaged, it must be replaced by the manufacturer or its service agents Drawer or a similarly qualified person in (For detergent and order to avoid a hazard. fabric softener) Control panel Drain hose Door Lower cover...
  • Page 8: Installation

    4. INSTALLATION 1⃞ Before servicing ask troubles of customers 2⃞ Check the adjustment(power supply is 220-240V~, remove the transit bolts..) 3⃞ Check the troubles referring to the trouble shooting. 4⃞ Decide service steps referring to disassembly instructions. 5⃞ And then, service and repair. 6⃞...
  • Page 9 ■ HOW TO CONNECT INLET HOSE Check that the rubber packing is inside of the valve connector. Connect the inlet hose firmly to prevent leak. ■ CONNECT DRAIN HOSE · Make sure that the hose is not twisted. · Avoid submerging the end of the hose. ※...
  • Page 10: Test Operation

    TEST OPERATION Preparation for Press the POWER button. Press the Start/Pause washing. button. Start Pause Power Connect the power plug to the outlet. In case of Coloreds program. Connect the inlet hose. Check the water heating. Check automatic reverse Check the water supply. turn.
  • Page 11: Operation

    5. OPERATION Delay finish Child lock • Press the button when reservation washing is • Once Child-Lock is set, and canceled by pressing both needed. [Wash] and [Rinse] simutaneusly once • When the button is pressed, [ Child lock is set. Once Chold Lock is set, all buttons is displayed.
  • Page 12: Led Display

    Time Save LED display • This option can be • Display the remaining time (Hour : Minute) to finish. used to reduce the • In case of abnormal operation, error indications are displayed. time of a wash program. • See trouble shooting guide. •...
  • Page 13: Wiring Diagram / Program Chart

    6. WIRING DIAGRAM PROGRAM CHART DISPLAY MAIN PWB SKY BL 1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 1 2 3 1 2 3 4 5 6 1 2 3 1 2 3 1 2 3 WH BK YL OR BL...
  • Page 14: Trouble Shooting

    7. TROUBLE SHOOTING 7-1.BEFORE SVC CHECKING ■ Be careful of electric shock or disconnecting the parts while trouble shooting. ■ Voltage of each terminal in 220-240V~ and DC while applying an electric current. 7-2.QC TEST MODE. ① ① Pressing Rinse, and Spin button simultaneously. ②...
  • Page 15: 7-4.Error Display

    7-5.ERROR DISPLAY. If you press the Start/Pause button in error condition, any error except ‘ ’ will disappear and the machine will change into pause status. In case of d e , d e , d e , if the error is not resolved within 20 sec., and in case of other errors, if the error is not resolved within 4 min., power will be turned off automatically and the error only will be blinked.
  • Page 16 ERROR SYMPTOM CAUSE • MAIN PWB ASSEMBLY is out of order Replace the MAIN PWB ASSEMBLY CURRENT • Winding in the STATOR ASSEMBLY is short-circuited. ERROR Replace the STATOR ASSEMBLY • “ ” is dispplayed during a high spin Replace the LEAD WIRE ASSEMBLY (MOTOR) •...
  • Page 17: Error Diagnosis And Check List

    8. ERROR DIAGNOSIS AND CHECK LIST 8-1.DIAGNOSIS AND ANSWER FOR ABNORMAL OPERATION SYMPTOM GUIDE FOR SERVICE CALL NO POWER Is the power plug connected firmly to 220-240V~ outlet? Power failure? or Breaker opened? Visit to check Water inlet trouble Is " "...
  • Page 18 SYMPTOM GUIDE FOR SERVICE CALL • Door does not open Started with door opened? • Error displayed on the program Close the door Visit to check Check if the door switch is O K. • DRAIN TROUBLE Is " " displayed? Is the debris filter clogged with foreign Clean up material such as pin, coin and etc.?
  • Page 19 SYMPTOM GUIDE FOR SERVICE CALL ° Suds overflow from the Is low-sudsing detergent for the drum appliance. washing machine used? (In this condition, wash and spin do not operate LOW-SUDSING normally) Is the proper amount of detergent used as recommended? Recommend to reduce the using amount of detergent.
  • Page 20: Fault Diagnosis And Trouble Shooting

    8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING CAUTION 1. Be careful of electric shock or disconnecting the parts while trouble shooting. 2. First of all, check the connection of each part terminal with wiring diagram. 3. If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly. NO POWER When measuring the voltage of the outlet, Check the fuse?
  • Page 21: No Water Supply

    NO WATER SUPPLY Is water supply shut-off? Is the tap opened? Open the tap. Check the AIR CHAMBER When you press both Rinse button and Spin button and the tube clogged simultaneously, is the water level frequency below 240? with impurity. Is the inlet valve filter clogged with impurity? Clean the filter.
  • Page 22 S O F T E N E R D O E S N O T F L O W I N Option Refer to Is water supplied? ^NO WATER SUPPLY_ Are receptacles correctly connected to the terminals Check the wiring on the of the INLET VALVE ASSEMBLY? dispenser.
  • Page 23: Heating Without Water

    HEATING WITHOUT WATER When pressing Wash and Rinse at the same time after draining, is the water level frequency 248 ~ 262 Replace the or more? S.PRESSURE SWITCH When pressing Rinse, Spin buttons at the same Wash Rinse ASSEMBLY time while wash, is the water level frequency between 230 - 243? Checking voltage between two pins as press the Replace the MAIN PWB...
  • Page 24 HEATING CONTINUOUSLY ABOVE THE SETTING WATER TEMPERATURE When checking THERMISTOR on the tub is the Push the THERMISTOR THERMISTOR loosened above 2mm from tightly to the rubber. the rubber?
  • Page 25 S P I N T R O U B L E Check the S.PRESSURE SWITCH ASSEMBLY or HOSE (Pressure). Check on the spinning, is the frequency of the If the problem is on the water level 248 or more. The frequency can be S.PRESSURE SWITCH Wash Rinse...
  • Page 26 [dHE] ERROR DISPLAY Dry duct Replace the thermistor. (6322FR2046B) Condensing duct Thermistor CHECK FOR DRY HEATER TROUBLE Condensing bellows CHECK FOR DRY FAN MOTOR TROUBLE Disassemble the cabinet cover and condensing bellows. Clean the bellows Is there any foreign object in condensing bellows.
  • Page 30: Disassembly Instructions

    9. DISASSEMBLY INSTRUCTIONS Disassemble and repair the parts after pulling out power cord from the outlet. CONTROL PANEL ① Unscrew the screws on the top plate. PLATE ASSEMBLY(TOP) ② The plate assembly(Top) is pulled back and then upward to arrow direction. ③...
  • Page 31 PWB ASSEMBLY(POWER) ① The back cover is removed. ② Two screws are unscrewed. ③ Disconnect connector from the wiring. ④ Pull the PWB assembly (Main) to arrow direction. DISPENSER ASSEMBLY ① The plate assembly(Top)and the cover(lnner)are disassembled. ② Pull the drawer to arrow direction. ③...
  • Page 32 INLET VALVE ① Disconnect the wiring connector. ② Remove the valve by two screws of the valve holder. When reconnecting the connector VALVE (DRY) YL/BK - BK VALVE (PRE-WASH) GY/WH - BK VALVE (NORMAL-WASH) WH/BK - BK VALVE ®È (NORMAL-WASH) BL/RD - BK VALVE (HOT)
  • Page 33 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. Removing method of remained water ① Rotate the Cap(Remaining Hose) to arrow direction.
  • Page 34 GASKET ASSEMBLY ① The cabinet gasket clamp is released. ② Two screws are unscrewed from the cabinet cover. ① One screw is unscrewed from the lower cover. ② The lower cover is disassembled by pulling out. ③ Three screws are unscrewed from the cabinet. (Remaining Hose) ①...
  • Page 35 ① Remove tub gasket clamp by loosening the screw. Tub Gasket Clamp ① Remove dry gasket clamp by loosening the screw. Gasket Clamp ① When reassembling the gasket, put the drain hole of the gasket downward, then assemble. Drain Hole...
  • Page 36 ROTOR ASSEMBLY, STATOR ASSEMBLY, FRICTION DAMPER ① Remove the back cover. ② After loosening the bolt, Rotor, pull out the rotor. Rotor Bolt (ROTOR ASSEMBLY) ① Remove the 6 bolt from the stator. ② Disconnect the 2 connectors. HOW TO ASSEMBLE THE MOTOR (STATOR ASSEMBLY) ①...
  • Page 37 PUMP ① Remove pump outlet hose. Pump Outlet Hose ② Remove tub pump bellows. ③ Remove cap(Remaining Hose). Screw ④ Disconnect the wiring. ⑤ Three screws are unscrewed from the cabinet. ⑥ Remove the pump to arrow direction. (Remaining Hose) Tub Pump Bellows HEATER ①...
  • Page 38 SWITCH ASSY, DOOR LOCK ① The cabinet cover clamp is removed and the gasket is released. ② Two screws are unscrewed. ③ The door lock S/W is disconnected form the wiring connector and the strap. WHEN FOREIGN OBJECT STUCK BETWEEN DRUM AND TUB ①...
  • Page 39 DRY DUCT ① Remove 5 screws and dry fan assembly. Dry fan ② Remove 6 screws and dry duct upper. Assembly Dry Duct Upper ① Remove 1 screw and dry heater. Thermostat ② Remove thermostat. Dry Heater CONDENSING DUCT ① Remove 2 screws from cabinet. ①...
  • Page 40: Exploded View And Parts List

    10. EXPLODED VIEW AND PART LIST 10-1.THE PART LIST OF CABINET ASSEMBLY A154 A153 A110 A140 A152 A151 A150 A120 A101 A102 A104 A141 A103 A131 A100 A130 A485 A430 A440 A134 A450 A133 A410 A300 A303 A310 A200 A277 A201 HOT(ORANGE) A275...
  • Page 41: The Exploded View Of Control Panel And Dispenser Assembly

    10-2 THE EXPLODED VIEW OF CONTROL PANEL & DISPENSER ASSEMBLY F322 F324 F462 F321 F170 F300 F160 F432 F466 F320 F460 F461 F436 F226 F310 F430 F464 F325 F225 F431 F227 F441 F440 F220 F435 F120 F110 F210 F130...
  • Page 42: The Exploded View Of Drum And Tub Assembly

    10-3 THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY K140 K141 K110 K142 K411 K420 K115 K360 K121 K122 K125 K123 K130 K143 K131 K350 M260 K351 F140 K311 K310 K511 K510 K111 K610 K105 K611 F467 K410 K540 K320 K530 K340 K515...
  • Page 43: The Exploded View Of Dryer

    10-4 THE EXPLODED VIEW OF DRYER M111 M120 M110 M100 M121 M210 M101 M220 M312 M310 M230 M311...

This manual is also suitable for:

Wd-12120(5)rdWd-10120(5)rd