LG WT-R10(~3)3(7)1(3,5)TP(H) Service Manual
LG WT-R10(~3)3(7)1(3,5)TP(H) Service Manual

LG WT-R10(~3)3(7)1(3,5)TP(H) Service Manual

Top-loading washing machine
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WASHING MACHINE

SERVICE MANUAL

CAUTION
Before servicing the washer, Read the safety precautions in the manual.
MODELS : WT-R10(~3)3(7)1(3,5)TP(H)
WT-R80(5)1
WT-Y1(~4)K
WT-R852, WT-R902

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Table of Contents
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Summary of Contents for LG WT-R10(~3)3(7)1(3,5)TP(H)

  • Page 1: Washing Machine

    WASHING MACHINE SERVICE MANUAL CAUTION Before servicing the washer, Read the safety precautions in the manual. MODELS : WT-R10(~3)3(7)1(3,5)TP(H) WT-R80(5)1 WT-Y1(~4)K WT-R852, WT-R902...
  • Page 2: Table Of Contents

    SAFETY PRECAUTION! DISASSEMBLE POWER CORD BEFORE SERVING RECONNECT ALL GROUNDING DEVICES IMPORTANT SAFETY NOTICE ! This service information is intended for individuals possessing adequate backgrounds of electrical, electronic and mechanical experience. Any attempt to repair this appliance may result in personal injury or property damage.
  • Page 3: Specifications

    1. SPECIFICATIONS WT-R10(~3)3(7)1(3,5) Series / WT-R80(5)1/ WT-Y1(~4)K/WT-R852/WT-R902 Model Refer to rating label on the back of Washer Power Sourse Refer to rating label on the back of Washer Input Refer to rating label on the back of Washer Capacity Stainless Inner Tub 0.3kgf/cm ~ 8kgf/cm...
  • Page 4: Installation Instructions

    2. INSTALLATION INSTRUCTIONS 2-1. HOW TO INSTALL THE WASHING MACHINE Selection of the installing place Install the washer on the horizontal solid floor. If the washer is installed on an unsuitable floor,it could make considerable noise and vibration. Do not install the washer in the following places Where the washer is exposed to direct sunlight.
  • Page 5 2-1. HOW TO LEVEL THE WASHING MACHINE Check the level of the washing machine using a spirit level on the side of the washer cabinet You can check the level also by visually lining up the washer with the fills, adjacent walls or cabinets. Location of drop Cause How to adjust...
  • Page 6: Connecting Water Supply Hose

    2-2. CONNECTING WATER SUPPLY HOSE Before connecting Water Supply Hose to water tap, check your hose type and choose correct instruction. Water Supply Hose may vary according to the country. Make sure connect blue inlet hose to cold water tab, and orange inlet hose to hot water tab.
  • Page 7 One Touch Type (NORMAL TAB WITHOUY THREAD & ONE TOUCH TYPE INLET HOSE.) Separate Middle connector from Water Supply Hose Separate Middle connector from the Water Middle Fixed Stiicker connector Supply Hose by pulling the Pressing Rod and Pressing Handle the Pressing Handle that is attached to the Pressing Rod Water Supply Hose while pressing them.
  • Page 8 Screw Type Attach the water supply hose to the tap. Push the water supply hose up so that the Water rubber packing within the hose can adhere completely to the tap. Rubber Packing Water Supply Hose Connect the water supply hose to the tap. Connect the water supply hose to the tap and then tighten it by screwing it to the right.
  • Page 9: Connect The Drain Hose

    2-3. CONNECT THE DRAIN HOSE For pump model Connect the drain hose to Attach the clip to the drain Check that the drain hose is hung the outlet of the drain pump hose. And then push it toward up over the edge of the laundry tub. located at the rear of the the body of the washing Do not use an extension hose.
  • Page 10: Operating Instructions

    3. OPERATING INSTRUCTIONS 3-1. IDENTIFICATION OF PARTS HOT WATER SUPPLY HOSE COLD WATER SUPPLY HOSE Make sure the water FUNCTION SELECTOR does not leak. START/PAUSE Powder detergent BUTTON (powder bleach)box Use to start or stop the for delayed washing/ washing machine temporarily.
  • Page 11: Before Starting To Wash

    Use nylon nets for long, delicate items. For laundry with long strings or long length , a net will prevent tangling during washing. Fasten zippers, hook, and strings to make sure that these items don't snag on other clothes. Nylon net is not supplied by LG.
  • Page 12 Using Water Amount of Water Level • This machine detects the quantity of laundry automatically, then sets the water level and proper amount of detergent. • When you select a wash program, the water level and amount of detergent (to be used) will be shown on the control panel.
  • Page 13 Using Detergent How much detergent When you select a wash program the water level and the amount of detergent (to be used) will be shown on the control panel. The amount of a cup in the diagram is about 40g for concentrated detergent. The correct amount of detergent will vary depending on the amount of soil in your clothes (Jeans and work cloches may need more detergent, while bath towels usually need less.).
  • Page 14 Using Fabric Softener Available Fabric Softener Type • Do not use concentrated fabric softener. This may cause some problems in automatic dispensing. • For more details refer to the softener products instructions for use. Depositing Fabric Softener • Don't use softener with detergent. Use Powder Detergent / Powder Bleach / Fabric Softener dispenser.
  • Page 15: Special Guide For Stain Removal

    Special Guide for Stain Removal WARNING I Do not use or mix liquid chlorine bleach with other household chemicals such as toilet cleaners, rust removers, acid or products containing ammonia. These mixtures can produce dangerous fumes which can cause serious injury or death. I To reduce the risk of fire or serious injury to persons or property, comply with the basic warnings listed below: •...
  • Page 16: Function Of Each Button

    3-3. FUNCTION OF EACH BUTTON I Fully automatic control • Add detergent, bleach and conditioner as desired. • The Normal program is used for average day to day washing. • Close the lid and press START/PAUSE button. • Press POWER ON button. •...
  • Page 17 I Manual control • Select temperature, level, process, program and options as • Other programmes are selected as follows. described below. • Press POWER ON button. • Close the lid and press START/PAUSE button. • Load clothes. • Add detergent, bleach and conditioner as desired. Motor Speed Display Delay Time Abnormal Operation...
  • Page 18 I WT-R852 Stain Level Water level Display Wash Process • Default is NORMAL. By • Use to select water levels. • On : will do pressing button [HEAVY➔ • Available during washing. • Blink : doing LIGHT ➔ NORMAL] mode •...
  • Page 19 Program Display Delay Time Start Pause Button • Use it to select washing • Used to indicate the time left of all • Use it to start or pause. programs. processes or delay. By pressing the button [Start ➔ Pause] are •...
  • Page 20 I WT-R902 Stain Level Display Wash Process Water level • Default is NORMAL. By • Use to select water levels. pressing button [HEAVY➔ • On : will do • Available during washing. LIGHT ➔ NORMAL] mode • Blink : doing •...
  • Page 21 Program Display Delay Time Start Pause Button • Used to indicate the time left of all • Use it to select washing • Use it to start or pause. processes or delay. programs. By pressing the button • In case of abnormal operation the [Start ➔...
  • Page 22: Washing Programs

    3-4. WASHING PROGRAMS AUTO OFF WASH Washing START RINSE Programs GRAM PAUSE laundry SPIN DELICATE Wash Use this program for washing delicate Select the fabrics such as lingerie. DELICATE Before washing your woolens check the program on care label for the washing instructions. the Control (wash only “water washable”...
  • Page 23 Close the lid Finish Caution & Note the detergent When setting the water level manually, do not set to MEDIUM to prevent damage to laundry. When the wash program Washing with hot water may damage the laundry (Water is set to warm automatically). Ensure that the load ends, the buzzer will ring is under 3,5kg for 10 seconds before...
  • Page 24 I WT-R852 Washing Programs laundry DELICATE Wash Use this program for washing delicate Select the fabrics such as lingerie. DELICATE Before washing your woolens check the program on the care label for the washing instructions. Control panel. (wash only “water washable” clothes) WOOL Use appr Select the...
  • Page 25 Close the lid Finish Caution & Note detergent When setting the water level manually, do not set to MEDIUM to prevent damage to laundry. When the wash program ends, the buzzer will ring Washing with hot water may damage the laundry (Water is set to warm automatically).
  • Page 26 I WT-R902 Washing Programs laundry DELICATE Wash Use this program for washing delicate Select the fabrics such as lingerie. DELICATE Before washing your woolens check the program on the care label for the washing instructions. Control panel. (wash only “water washable” clothes) WOOL Use app Select the...
  • Page 27 Close the lid Finish Caution & Note e detergent When setting the water level manually, do not set to MEDIUM to prevent damage to laundry. When the wash program Washing with hot water may damage the laundry ends, the buzzer will ring (Water is set to warm automatically).
  • Page 28: Other Functions

    3-5. OTHER FUNCTIONS 1) Delay Start(Reservation) Wash Delay Start (Reservation) Wash is used to delay the finishing time of the operation. The hours to be delayed can be set by the user accordingly. The time on the display is the finishing time , not the start time. Press the POWER button to turn power on.
  • Page 29 2) Option Washing POWER WATER LEVEL WASH START By pressing button WATER RINSE TEMP. PAUSE Select water SPIN levels Add detergent. Soak Soak Wash Wash Wash only Close the Select lid Press WASH Start/ time. Pause button. Rinse Rinse Rinse Rinse Rinse time...
  • Page 30 I WT-R852 By pressing button Select water levels Add detergent. Soak Soak Wash Wash Wash only Close the Select WASH lid Press time. Start/ Pause button. Rinse Rinse Rinse Rinse Rinse time time time time only Close the Select No. of lid Press RINSE.
  • Page 31 I WT-R902 By pressing button Select water levels Add detergent. Soak Soak Wash Wash Wash only Close the Select WASH lid Press time. Start/ Pause button. Rinse Rinse Rinse Rinse Rinse time time time time only Close the Select No. of lid Press RINSE.
  • Page 32 3) Child Lock function If you want to lock all the keys to prevent all settings from being changed by a child, you can use the child lock option. How to Lock Press the POWER button. AUTO OFF Turn Power on. Press the START/PAUSE button to start washing.
  • Page 33: Care And Maintenance

    3-6. CARE AND MAINTENANCE When there is a fear of freezing • Close the water taps and remove the Water Supply Hose. • Remove the water which remains in the water supply. • Lower the drain hose and drain the water in the bowl and the drain hose by spinning. If frozen •...
  • Page 34: Service Information

    4. SERVICE INFORMATION 4-1. SCHEMETIC DIAGRAM...
  • Page 35: Wiring Diagram

    4-2. WIRING DIAGRAM A) For Pump Model B) For non Pump Model...
  • Page 36: Program Time Chart

    4-3. PROGRAM TIME CHART 1) WT-R80(5)1 Program chart Power Spin Power Spin Speed High Spin Intermittent Drain Rinsing Supply Water Spin Power Spin Speed High Spin Intermittent Drain Rinsing Supply Water Spin Power Spin Speed High Spin Intermittent Drain Shower Rotate Spin Power...
  • Page 37: Program Chart

    2) WT-R10(~3)3(7)1(3,5) Series, WT-Y1(~4)K, WT-R852, WT-R902 Program chart Power Spin Power Spin Speed High Spin Intermittent Drain Rinsing Supply Water Spin Power Spin Speed High Spin Intermittent Drain Rinsing Supply Water Spin Power Spin Speed High Spin Intermittent Drain Washing Supply Water...
  • Page 38 3) WT-T1(~4)K Power Spin Power Spin Speed High Spin Intermittent Drain Rinsing Supply Water Spin Power Spin Speed High Spin Intermittent Drain Rinsing Supply Water Spin Power Spin Speed High Spin Intermittent Drain Shower Rotate Spin Power Spin Intermittent Drain Washing Supply Water...
  • Page 39: Disassembly Instruction

    4-4. DISASSEMBLY INSTRUCTION Be sure to unplug the power to repair and replace electric parts. CAUTION FOR ELECTROSTATICS Be sure to make earth connection for trouble diagnosis and parts replacement. If impossible, touch earth wire on the body to remove electric deviation between the body and product before work.
  • Page 40 Disassemble the power cord. Inlet valve DT Housing Remove two inlet valve screws and pull up inlet valve from D.T housing assembly. Power Cord Be careful that the silicon rubber of D.T housing assembly for sealing is not missing. Inlet valve assembly is disassembled by pulling out the lead wire attached on inlet valve assembly.
  • Page 41 4) Disassembly of Back Cover, Drain Pump. Remove back cover fixing screws then disassemble the back cover. Disconnect the leads and the drain hose-p from the drain pump. Remove the pump fixing screws then disassemble the drain pump. Leads drain hose-p pump fixing screw 5) Replacement of Damper asm Separate top cover from washing machine.
  • Page 42 6) Replacement of Rotor & Stator Disassemble rotor nut with boxer(M18) or spaner. In assembled, the force is over than 200kgf.cm) Disassemble rotor, pull out the rotor as shown the figure. Fixing Bolt Disconnect the drain motor wire, loose fixing screw Water Guide and disassemble the water guide &...
  • Page 43 Loosen the 6 fixing screws on the stator. SNAP RING. (Lower upper position screws) Check the direction of SNAP RING. (The handle of snap ring is toward to rotor and stator.) Preventing fallen the stator, tighten with one hand and then loosen the last screw. For assembly take care lead wire’s state, Hall Sensor Stator Housing...
  • Page 44: Test Running Without Water

    4-5. TEST RUNNING WITHOUT WATER 1) METHOD TO USE QC TEST MODE • To use the CHECK PROGRAM (QC TEST MODE),while pressing the WATER LEVEL&WATER TEMP. buttons, press the POWER button.Do not deposit any laundry in the wash tub while in this mode. •...
  • Page 45: Trouble Shooting Methods Against Common Washing Problems

    4-6. TROUBLE SHOOTING AGAINST COMMON WASHING PROBLEMS Many washing problems involve poor soil & stain removal, residues of lint and scum, and fabric damage. For satisfactory washing results, follow these instructions. WASH PROBLEM Problems Solutions & Preventive Measures Possible Causes Poor soil •...
  • Page 46: Trouble Shooting Methods According To Error Message

    4-7. TROUBLE SHOOTING METHODS ACCORDING TO ERROR MESSAGE For more detailed information for trouble shooting refer to page 37 to 45. ERROR DECISION CAUSE FOR ERROR ERROR REMEDY BASIS OCCURRENCE WATER • Water level does not • Water faucet is closed? •...
  • Page 47 ERROR DECISION CAUSE FOR ERROR ERROR REMEDY BASIS OCCURRENCE • Connector the PRESSURE S/W • Water Pressure Switch ASM or RED(ORANGE or PINK) 4 • Correct the connector contact. PRESSURE is off. pin connector to P.W.B ASM has SENSOR bad connection. •...
  • Page 48: How To Diagnose And Repair By Symptom

    4-8. HOW TO DIAGNOSE AND REPAIR BY SYMPTOM 1) Washer is not energized. Where, what & how to check? Result of Check Possible Cause How to repair & settle Household Power supply Change the electrical. 1. Check whether connection between Poor Defect of the the plug and the electrical is poor...
  • Page 49: Reset During Operation

    2) Defects on displaying function Where, what & how to check? Result of Check Possible Cause How to repair & settle Main voltage To explain that it is 1. Measure mains voltage at the wall Less than 85% Low voltage. caused by low voltage in outlet of the rating.
  • Page 50: Water Doesn't Come Into The Wash Tub

    3) Reset During operation Where, what & how to check? Result of Check Possible Cause How to repair & settle Controller Change the controller. 1. If mains voltage and the drain motor have no defects a defect of the controller is highly possible. 4) Water doesn’t come into the wash tub.
  • Page 51 4) Water doesn’t come into the wash bowl. Where, what & how to check? Result of Check Possible Cause How to repair & settle Pressure Switch Reconnect the connector Connector is taken PE Error 1. Is there PE error on the display or change leads.
  • Page 52 6) Display “LE” message and doesn’t work Where, what & how to check? Result of Check Possible Cause How to repair & settle 1. In initial state display “LE” message. 1) Measure voltage of hall sensor asm. Hall sensor assembly Gray-White DC 15V No defect...
  • Page 53: Water Does Not Drain

    7) Water does not drain. Where, what & how to check? Result of Check Possible Cause How to repair & settle Drain Pump Disassemble the drain pump cap and remove Drain pump is 1. Check whether there is drain pump There is pump the foreign objects in the blocked by foreign...
  • Page 54 Where, what & how to check? Result of Check Possible Cause How to repair & settle Drain Motor Drain motor coil is (For Non-Pump Model only) Change the drain motor open. Check the washer 1. Check resistance of the drain works normally after motor if it can not pull the PV link.
  • Page 55 9) Drain error happens while water drains normally. Where, what & how to check? Result of Check Possible Cause How to repair & settle Pressure Switch Change the pressure 1. Check generation frequency of the Less than Defect of the switch.
  • Page 56 11) Vibration, Noise or Unbalance Error happens during spin. Where, what & how to check? Result of Check Possible Cause How to repair & settle Suspension Change four Defect of the 1. Check whether the outer tub cover suspensions Suspension hit the top cover without load simultaneously.
  • Page 57: Exploded View

    5. EXPLODED VIEW BODY-A BODY-B...
  • Page 58 5-1. THE EXPLODED VIEW OF THE BODY-A A210 A161 A050 A-011 A162 A220 A062 A202 A020 A061 A200 A201 A180 A240 A152 A190 A026 A151 A030 A040 A230 A100 A277 HOT(RED) A273 COLD(BLUE) A274 A053 HOT(RED) HOT(RED) A275 A271 COLD(BLUE) COLD(BLUE) A272 A276...
  • Page 59 5-2. THE EXPLODED VIEW OF THE BODY-B : Non-Service Part F000 F001 F070 F080 F082 F081 F084 F090 F021 For Pump F020 F027 F100 F024 F023 For Non-Pump F050...
  • Page 60 5-3. THE EXPLODED VIEW OF THE TUB ASSEMBLY : Non-Service Part K000 For Non-Pump K010 K040 K120 K050 K060 K250 K061 K100 K111 K110 K200 K202 K210 For Pump K140 K201 K067 K064 K300 For Non-Pump K150 K290 For Non-Pump K230 K270 K260...
  • Page 61 APL. 2002 PRINTED IN KOREA P/No.:3828EA3013G...

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