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LG WD-1247RD Service Manual

Front-loading washing machine
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WASHING MACHINE

SERVICE MANUAL

CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES
CORRECTLY BEFORE OFFERING SERVICE.
MODEL : WD-1247RD / WD-1248RD

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  Summary of Contents for LG WD-1247RD

  • Page 1: Washing Machine

    WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLES CORRECTLY BEFORE OFFERING SERVICE. MODEL : WD-1247RD / WD-1248RD...
  • Page 2 AUG. 2006 PRINTED IN KOREA P/No.: MFL30138905...
  • Page 3: Table Of Contents

    CONTENTS 1. SPECIFICATION..........................3 2. FEATURES & TECHNICAL EXPLANATION ................4 3. PARTS IDENTIFICATION ......................7 4. INSTALLATION ..........................8 5. WIRING DIAGRAM / PROGRAM CHART ...................11 6. OPERATION ..........................12 7. TROUBLE SHOOTING........................14 7-1.BEFORE SVC CHECKING ....................14 7-2.QC TEST MODE........................14 7-3.HOW TO KNOW THE WATER LEVEL FREQUENCY............14 7-4.ERROR DISPLAY ........................15 8.
  • Page 4: Specification

    1. SPECIFICATION ITEM WD-1247RD / WD-1248RD POWER SUPPLY 220-240V~, 50Hz PRODUCT WEIGHT 80kg WASHING 200W SPIN 300W ELECTRICITY FAN MOTOR CONSUMPTION DRAIN MOTOR WASH HEATER 2000W DRY HEATER 2100W STEAM HEATER 1900W WASH 46rpm REVOLUTION SPEED No Spin/400/800/1000/1200 SPIN OPERATION WATER PRESSURE 0.3-10kgf/cm...
  • Page 5: Features & Technical Explanation

    2. FEATURES & TECHNICAL EXPLANATION 2-1.FEATURES Ultra Capacity The Larger drum enables not just higher head drop and stronger centrifugal force, but also less tangling and wrinkling of the laundry. Heavier loads, such as king size comforters, blankets, and curtains, can be washed. Direct Drive System The advanced Brushless DC motor directly drives the drum without belt and pulley.
  • 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: Child Lock

    2-5. THE DOOR CAN NOT BE OPENED While program is operating When a power failed and power plug is taken out in operation While Door Lock lights turn on. While the motor is in the process of intertial rotating, through the operation is paused. 2-6.
  • Page 8: Parts Identification

    3. PARTS IDENTIFICATION Water Supply Hose ACCESSORIES Spanner...
  • Page 9: Installation

    4. INSTALLATION Before servicing ask troubles of customers Check the adjustment(power supply is 220-240V ac 50Hz, remove the transit bolts..) Check the troubles referring to the trouble shooting. Decide service steps referring to disassembly instructions. And then, service and repair. After servicing, operate the appliance whether it works O K or NOT.
  • Page 10 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. The drain hose should be placed under 100cm from the floor.
  • Page 11: Test Operation

    TEST OPERATION Preparation for Press the POWER button. Press the Start/Pause washing. button. 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 12: Wiring Diagram / Program Chart

    6. WIRING DIAGRAM PROGRAM CHART ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄ ⁄...
  • Page 13: Operation

    5. OPERATION POWER BUTTON EST. TIME REMAINING • This display shows: • Use this button to turn the power a) the estimated time remaining in the On/Off. cycle when operating. b) an error code when an error has been detected. CYCLE SELECTOR KNOB •...
  • Page 14 INTENSIVE, FAVORITE BUTTON STATUS INDICATOR • These lights show which portion • Intensive: If the laundry is heavily soild “Intensive” optionis of the cycle the washer is effective. By selecting the Intensive option,the operating. wash time may be extended, depending onthe program selected.
  • Page 15: 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 is 220-240V~ and DC while applying an electric current. 7-2.QC TEST MODE. Pressing Rinse, and Temp. button simultaneously. Press the Power button, while the above condition.
  • Page 16: 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 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 will remain blinking.
  • Page 17 ERROR SYMPTOM CAUSE MOTOR • The connector in the LEAD WIRE ASSEMBLY is not connected to ERROR the connnector of STATOR ASSEMBLY Reconnect or repair the connector • The hall sensor is out of order/defective. Replace the STATOR ASSEMBLY • The Dry Heater is out of order HEATOR Replace the Dry Heater ERROR...
  • Page 18: 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 AC 220-240V outlet? Power failure? or Breaker opened? Visit to check Water inlet trouble No Inlet Is "...
  • Page 19 SYMPTOM GUIDE FOR SERVICE CALL Started with door opened? Close the door Visit to check Check if the door switch is O K. Is " " displayed? Is the debris filter clogged with foreign Clean up material such as pin, coin and etc.? the filter.
  • Page 20 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 21: 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 22: 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 23 S O F T E N E R D O E S N O T F L O W I N Refer to Is water supplied? NO WATER SUPPLY Check the wiring on the Are receptacles correctly connected to the terminals dispenser.
  • Page 24: Heating Without Water

    HEATING WITHOUT WATER When pressing Rinse and Temp. at the same time after draining, is the water level frequency 255? Replace the When pressing Rinse and Temp. buttons at the S.PRESSURE SWITCH same time while washing, is the water level ASSEMBLY frequency between 230 - 243 ? After completely drained and turn...
  • Page 25 220-240V~? AC 220-240V YELLOW-BLACK BLACK 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 26 S P I N T R O U B L E Check the S.PRESSURE SWITCH Check on the spinning, is the frequency of the ASSEMBLY or HOSE (Pressure). water level 248 or more. The frequency can be If the problem is on the checked by pressing the Rinse and Temp.
  • Page 27 [dHE] ERROR DISPLAY Replace the thermistor. (6322FR2046B) CHECK FOR DRY HEATER TROUBLE CHECK FOR DRY FAN MOTOR TROUBLE Disassemble the cabinet cover and condensing bellows. Clean the bellows Is there any foreign object in condensing bellows. Disassemble the dry fan assy and dry duct upper, and clean foreign object in duct and fan.
  • Page 28 Are receptacles correctly connected to the terminals of the DRY DUCT Reconnect the ASSEMBLY? receptacle PWB HARNESS...
  • Page 29 (1)-Yellow, 3pin 20~30 Black Yellow...
  • Page 30 (5221ER1002A) AC 220-240V.
  • Page 31: Disassembly Instructions

    9. DISASSEMBLY INSTRUCTIONS Disassemble and repair the parts after pulling out power cord from the outlet. PANEL ASSEMBLY, CONTROL TOP PLATE ASSEMBLY Unscrew 2 screws on the back of the top plate. Pull the top plate backward and upward as shown. Pull out the drawer and unscrew 2 screws.
  • Page 32 Disconnect connector from the wiring. Two screws are unscrewed. Push the hook of between BASE,CABINET and PWB ASSEMBLY below as shown. Pull the PWB assembly (Main) to arrow direction.
  • Page 33 Disassemble the top plate assembly. Pull out the drawer. Push out the DISPENSER ASSEMBLY after unscrew 2 screws. When reconnecting the connector Unscrew the nut at the lower part of the dispenser. Disassemble the 4 or 5 connectors from the valves. Blue Housing(BK-YL/BK) Blue Housing(BK-GY/WH) White Housing(BK-WH/BK)
  • Page 34 Unscrew the 2 screws from the lower of the DECO PANEL. Unscrew the 4 screws from the back of the DECO PANEL. Pull out the DECO PANEL Unscrew the 4 screws from upper of the canbinet cover. Unscrew the screw from filter cover. Put a flat ( - ) screwdriver or putty knife into the both sides of the filter cover, and pull it out.
  • Page 35 Open the door. Disassemble the clamp assembly. Tilt the cabinet cover. Disconnect the door switch connector. NOTE: When assembling the CABINET COVER, connect the connector. Lift and separate the cabinet cover. Disassemble the clamp assembly. Disassemble the Gasket.
  • Page 36: Door Lock Switch Assembly

    DOOR Open the door. Remove the two screws from the Hinge. When removing the Door Assembly, it is necessory to hold the break is inner of the cabinet cover. Be careful! The door is heavy. DOOR LOCK SWITCH ASSEMBLY Open the door and disassemble the CLAMP ASSEMBLY.
  • Page 37 Disassemble the cabinet cover. Separate the pump hose, the bellows and the circulation hose assembly from the pump assembly. Disassemble the pump assembly in arrow direction. Disassemble the cabinet cover. Separate 2 connectors from the heater. Washing Heater Loosen the nut and pull out the heater. Ring Terminal CAUTION •...
  • Page 38 Disassemble the cabinet cover. Separate the heater from the tub. Remove any foreign objects (wire, coin, etc.) by inserting a long bar in the opening. Disassemble the back cover. Remove the bolt. Pull out the Rotor. Unscrew the 2 screws from the tub bracket. Remove the 6 bolts on the stator.
  • Page 39 To check out the fault diagnosis of TSG, in case of removing the water inside, you can pull out the plug and let the water drain away. Be cautious in case of the TSG is hot temperature. Remove the housing coupled the TSG (Heater, Water level frequency-sensor, Thermistor) Taking out the screw of the TSG and Body...
  • Page 40 Taking out the screws of Body Frame (2EA) Separate the hoses from the TSG. Remove the Body Frame and then, separate the TSG from the washer...
  • Page 41: Exploded View And Parts List

    10. EXPLODED VIEW AND PART LIST 10-1.CABINET ASSEMBLY A485 F120 M410 A450 A410 K420 A104 A105 A150 M400 A140 A154 A102 A152 A111 A153 A103 A151 A110 A141 K411 A101 A134 K410 A390 A161 A100 A130 A430 A162 A155 A133 A131 A440 F436...
  • Page 42: The Exploded View Of Drum And Tub Assembly

    10-2. DRUM & TUB ASSEMBLY K351 K350 K360 K143 K123 K320 F464 K310 F310 F140 K311 K125 K122 K121 K115 K105 F466 K110 F315 F463 F465 K140 K141 K111 K610 K131 K512 K611 M260 K511 F467 K550 K510 K530 K130 F328 F468 K520 F461...
  • Page 43: The Exploded View Of Control Panel And Dispenser Assembly

    10-3. CONTROL PANEL AND DISPENSER ASSEMBLY F215 F324 F110 F462 F327 F210 F322 F216 F321 F300 F330 F170 F160 F340 F220 F225 F329 A277 A275 A276 F432 A273 A274 A271 A272 A270...
  • Page 44: The Exploded View Of Dryer

    10-4. THE EXPLODED VIEW OF DRYER M111 M110 M100 M210 M120 M240 M121 M235 K311 M130 M215 M101 M220 M312 K311 M310 M311 M250 M230 K311...