LG WTG7532W Service Manual

LG WTG7532W Service Manual

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WASHING MACHINE
SERVICE MANUAL
CAUTION
Before servicing the washer, Read the safety precautions in the manual.
MODEL :
WTG7532W

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Table of Contents
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Summary of Contents for LG WTG7532W

  • Page 1 WASHING MACHINE SERVICE MANUAL CAUTION Before servicing the washer, Read the safety precautions in the manual. MODEL : WTG7532W...
  • 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 POWER SOURSE Refer to rating label on the back of Washer INPUT Refer to rating label on the back of Washer CAPACITY Refer to rating label on the back of Washer INNER TUB Stainless INLET WATER 50kPa~600kPa PRESSURE SPIN SPEED 950 rpm DIM.
  • Page 4: Installation Instructions

    2. INSTALLATION INSTRUCTIONS 2-1. HOW TO ADJUST LEVEL Installation area Install the washer on flat and firm • surface. Checking level Open the lid, and check if the • washer is correctly leveled by looking down from the top. Adjustable leg Turn the adjustable legs to set the washer horizontal (2 EA).
  • Page 5 Checking slope Confirming level If installation surface is tilted, the • • Place the washer to original position washer will be shaken. and confirm the level. Horizontal setting Distance between drain hose and the wall Lift up the front of the washer and Distance between drain hose and the wall should •...
  • Page 6 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. Connecting Water Supply Hose to water tap Normal Type (Normal tab without thread &...
  • 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 connector Conector Fixed Stiicker Etiqueta Fija Supply Hose by pulling the Pressing Rod and Medio Manija de Presión Pressing Handle...
  • Page 8 Screw Type Attach the water supply hose to the tap. Push the water supply hose up so that the rubber packing within the hose can adhere completely Water to the tap. Water Supply Hose Rubber Packing 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 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 • • the outlet of the drain pump hose. And then push it hung up over the edge of the located at the rear of the toward the body of the...
  • Page 10: Operating Instructions

    3. OPERATING INSTRUCTION 3-1. IDENTIFICATION OF PARTS * WATER POWDER DETERGENT BOX SUPPLY HOSE FOR DELAYED WASHING / Make sure the SOFTENER BOX water does not leak. * POWER PLUG If the supply cord is damaged, it must be BLEACH replaced by the DISPENSER( manufacturer or its...
  • 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 displays the amount of detergent to be used. • 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 Detergent Follow the Detergent package directions. Using too little Detergent is a common cause of laundry problems as is if too much detergent is used. Only more Detergent if you have hard water, large loads, greasy or oily soils or lower Water Temperature. Choosing the right Detergent We recommend the use of drum type, low sudsing high efficiency Detergent(powder,liquid or concentrated).
  • Page 14 Using Liquid Bleach • Check clothing care label for special instructions and separate the laundry to be bleached • Dilute liquid chlorine bleach. • Measure the recommended amount of liquid bleach carefully following instructions on the bottle. • Before starting the washer, pour measured amount of bleach directly into bleach dispenser.
  • Page 15 ☞ SPECIAL GUIDE FOR STAIN REMOVAL WARNING 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. 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 Intensive wash Extra Rinse As supplying water temperature different ,steam time will be different.
  • Page 17 Extra...
  • Page 18: Washing Programs

    3-4. WASHING PROGRAMS Cotton Wash...
  • Page 19 Extra Rinse Wash Extra Rinse...
  • Page 21 Quiet Wash Quiet Wash Quiet Wash...
  • Page 30: Other Functions

    3-5. OTHER FUNCTIONS...
  • Page 31: Cleaning And Maintenance

    3-6. CLEANING AND MAINTENANCE When there is a possibility of freezing ambient temperatures. • 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 32: Service Information

    4.SERVICE INFORMATION 4-1. WIRING DIAGRAM 1)Pump models...
  • Page 33: Disassembly Instruction

    4-2. 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 34 2) Disassembly of Back Panel, Power Cord, Inlet Valve & BP Sensor ① Remove two back panel fixing screws in the back side. ② Disassemble the back panel. ③ Disconnect two connectors and disassemble the power cord. ④ Remove a valve fixing screw & disconnect the leads form the inlet valve.
  • Page 35 3) Disassembly of Back cover, Drain Pump. ① Remove back cover fixing screws then disassemble the back cover. ② Disconnect the leads and the drain hose-p from the drain pump. ③ Remove the pump fixing screws and the connector hose disassemble the drain pump. 4) Replacement of Damper asm ①...
  • Page 36 6) Replacement of Rotor & Stator ① Disassemble rotor nut with boxer(M18) or spaner. (※ In assembled, the force is over than 200kgf. ② Disassemble rotor, pull out the rotor as shown the figure. Fixing Bolt ③ Disconnect fixing screw and disassemble the water guide.
  • Page 37 ⑤ Loosen the 6 fixing screws on the stator. SNAP RING. (Lower upper position screws) ⑥ Check the direction of SNAP RING. (The handle of snap ring is toward to rotor and stator.) ⑦ Preventing fallen the stator, tighten with one hand and then loosen the last screw.
  • Page 38: Test Running Without Water

    4-3. TEST RUNNING WITHOUT WATER 1) SAFETY CAUTION The main power board assembly has exposed live 120 VAC and live DC voltages. Use care when disconnecting connectors during troubleshooting and testing. (Wear electrostatic discharge gloves when handling the board. Unplug the power when handling the board assembly. (Wear electrostatic discharge gloves when handling the board.
  • Page 39: Trouble Shooting Against Common Washing Problems

    4-4. TROUBLESHOOTING BY COMMON WASHING PROBLEMS Many washing problems involve poor soil and stain removal, residues of lint and scum, and fabric damage. For satisfactory washing results, follow these instructions. Use ONLY powdered or liquid HE (High Effificiency) detergents. Do NOT use flakes scraped from a soap cake or bar, flakes, soap ribbons (available in some markets,) detergent tablets, plastic pouches, magic laundry balls, or anything other than powdered or liquid HE detergent products.
  • Page 40: Trouble Shooting With Error Code

    4-5. TROUBLE SHOOTING WITH ERROR CODE ERROR DECISION CAUSE FOR ERROR ERROR REMEDY BASIS OCCURRENCE ・ WATER LEVEL ・ Water faucet is closed? ・ Open water faucet. WATER ・ Water supply is interrupted. SUPPLY dose not rise to Wait until water supply is the set level in within resumed.
  • Page 41 ERROR DECISION CAUSE FOR ERROR ERROR REMEDY BASIS OCCURRENCE · Pressure switch has a · Check the connections at the · Reseat the connector. PRESSURE SENSOR bad connection or the pressure switch and at the switch has failed. BLUE 6-pin connector at the ·...
  • Page 42 ERROR DECISION CAUSE FOR ERROR ERROR REMEDY BASIS OCCURRENCE ・ Thermistor has a bad ・ Check the connections at the ・ Reseat the connector. THERMISTOR connection or failed Thermistor and at the WHITE 3-pin connector at the main ・ Replace the thermistor if board necessary.
  • Page 43: How To Diagnose And Repair By Symptom

    4-6. HOW TO DIAGNOSE AND REPAIR BY SYMPTOM 1) Washer is not energized. How to repair & s ett le Where, what & how to check? Re sult of Check Poss ible Cause Household Power supply Poor Defect of the electrical Change the electrical.
  • Page 44 2) Defects on displaying funcion How to repair & settle Where, what & how to check? Possible Cause Result of Check Main voltage Less than 85% of the Low voltage To explain that it is 1. Measure mains voltage at the wall outlet rating caused by low voltage in electric supply and...
  • Page 45 4) Water doesn’t come into the wash tub. How to repair & settle Where, what & how to check? Possible Cause Result of Check Inlet Valve 1. If water doesnʼt come though the inlet valve works(electric sound occurs) 1) Check whether water mains is cut. Water mains cut.
  • Page 46 5) Water fills continuously of intermittently How to repair & settle Where, what & how to check? Result of Check Possible Cause Wrong Installation/Leakage Drain hose laying Wrong installation. The drain hose should be 1. Check whether the drain hose is laying down.
  • Page 47 6) Display "LE" message and doesn't work How to repair & settle Where, what & how to check? Possible Cause Result of Check 1. In initial state display “LE ” message. 1) Measure voltage of hall sensor asm. Gray-White DC 15V No defect Hall sensor assembly...
  • Page 48 7) Water does not drain. How to repair & settle Where, what & how to check? Possible Cause Result of Check Drain Pump 1. Check whether there is drain pump There is pump Drain pump is blocked by Disassemble the drain pump cap and remove the working sound.
  • Page 49 8) Water drains thought it is not the time of drain. How to repair & settle Where, what & how to check? Possible Cause Result of Check Drain Hose 1. Check whether the drain hose is The discharge height Wrong installation of the Put the outlet of drain hose installed properly so that the discharge is lower than...
  • Page 50 11) Vibration, Noise or Unbalance Error happens during spin. How to repair & settle Where, what & how to check? Possible Cause Result of Check Using conditions such as installation etc. 1. Check whether the washer is leveled. Not leveled. Defect of installation Level the washer.
  • Page 51 12) Power is automatically turned off during operation or immediately turning on the power button. How to repair & settle Where, what & how to check? Possible Cause Result of Check Auto Power Relay or Controller Automatically tumed Mechanical defect of the Change the switch.
  • Page 52: Exploded View

    5. EXPLODED VIEW TOP COVER ASSEMBLY TUB ASSEMBLY CABINET ASSEMBLY...
  • Page 53 5-1. THE EXPLODED VIEW OF TOP COVER ASSEMB A020 A030 A040 A010 A052 A065 A240 A203 A200 A062 A060 A190 A061 A163 A165 A152 A150 A101 A230 A163 A100 A101 A171 A170 A180 A140 HOT(ORANGE) COLD(BLUE) A270...
  • Page 54 5-2. THE EXPLODED VIEW OF OUT CASE ASSEMBLY F070 F001 F000 F080 F090 F020 F023 F024 F023...
  • Page 55 K004 K000 K012 K021 K020 K040 K050 K061 K060 K110 NATURAL K100 K250 K350 K064 K140 K340 K345 K240 K200 K290 K260 K210 K201 K305 K300 K430...
  • Page 56 AUGUST 2014 PRINTED IN CHINA...

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