LG wm2016cw Service Manual
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LG wm2016cw Service Manual

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WASHING MACHINE

SERVICE MANUAL

CAUTION
!
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
MODEL: WM2016CW
Website: http: //www.LGEservice.com
E-mail: http: //www.LGEservice.com/techsup.html
100

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  • Page 1: Washing Machine

    Website: http: //www.LGEservice.com E-mail: http: //www.LGEservice.com/techsup.html WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT. MODEL: WM2016CW...
  • Page 2 NOV. 2006 PRINTED IN KOREA P/No.: MFL30599104...

  • Page 3: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ....................... 3 2. FEATURES AND TECHNICAL EXPLANATION ..............4 3. PARTS IDENTIFICATION ....................7 4. INSTALLATION AND TEST ....................8 5. OPERATION ........................11 5-1. CONTROL PANEL FEATURES ................. 11 5-2. CYCLE GUIDE ......................13 5-3. SPECIAL FUNCTIONS ....................14 5-4.

  • Page 4: Specifications

    1. SPECIFICATIONS ITEM WD2016CW WM2233H* COLOR W:BLUE WHITE, B:BLACK PEARL, S:TITANIUM POWER SUPPLY AC 120 V, 60 Hz PRODUCT WEIGHT 179 lbs. (81 kg) 190 lbs. (86 kg) WASHING 280 W ELECTRIC POWER DRAIN MOTOR 80 W CONSUMTION WASH HEATER 1000W WASH 46 rpm...

  • Page 5: Features And Technical Explanation

    2. FEATURES & TECHNICAL EXPLANATION 2-1. FEATURES ■ Direct Drive System The advanced Brushless DC motor directly drives the drum without belt and pulley. ■ Tilted Drum and Large Door Opening Tilted drum and large opening make it possible to load and unload clothing more easily.

  • Page 6: Water Level Control

    2-2. NEURO FUZZY WASHING TIME OPTIMIZATION To get the best washing performance, optimal time is determined by the water temperature, the selected washing temperature, and the size of the load. water temperature washing time the best selected NEURO- washing washing rinsing time temperature FUZZY...

  • 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. White the motor is in the process of intertial rotating, through the operation is paused. 2-6.

  • Page 8: Parts Identification

    3. PARTS IDENTIFICATION ■ ACCESSORIES Hot/Cold (1 each) Tie strap Wrench Hose for removing shipping bolts to secure drain hose to standpipe, and leveling the washer inlet hose, or laundry tub Cap (4 each) Hose retainer to cover the holes created after removing the shipping bolts...

  • Page 9: Installation And Test

    4. INSTALLATION & TEST Before servicing, ask the customer what the trouble is. Check the setup (power supply is 120V, remove the transit bolts, level the washer...) Check with the troubleshooting guide. Plan your service method by referring to the disassembly instructions. Service the unit.
  • Page 10 ■ HOW TO CONNECT THE INLET HOSE Verify that the rubber washer is inside of the valve connector. Tighten the inlet hose securely to prevent leaks. ■ CONNECT THE DRAIN HOSE · Make sure that the hose is not twisted. ·...

  • Page 11: Test Operation

    TEST OPERATION Press the POWER button. Press the Start/Pause Preparation for washing. button. • Connect the power plug to • Listen for a click to determine if the outlet. the door has locked. • Connect the inlet hose. Check the water Check the automatic Check the water supply.

  • Page 12: Operation

    5. OPERATION 5-1. CONTROL PANEL FEATURES WM2016CW WM2233H*...
  • Page 13 Delay Wash, Water Plus/*Spinsense, Extra Rinse EST. TIME REMAINING • Delay Wash allows the start of any cycle to be delayed for 1~9 hours • This display shows: • Water Plus adds extra water to the wash and rinse cycles for a) the estimated time remaining superior results in the cycle when operation.

  • Page 14: Cycle Guide

    5-2. CYCLE GUIDE Select cycles designed for different types of fabric and soil levels. Wash/Rinse Soil Pre- Quick Extra Rinse + Stain Water Cycle Fabric type Spin Speed Temp. Level Wash Cycle Rinse Spin Cycle Plus Warm/Cold Extra High Normal Cotton, linen, Warm/Warm No Spin...

  • Page 15: Special Functions

    5-3. SPECIAL FUNCTIONS The option buttons also activate special functions, including CHILD LOCK, TUB CLEAN, and SPIN SENSE. CHILD LOCK Use this option to prevent unwanted use of the washer or to keep cycle settings from being changed while the washer is operating. Press and hold the OPTION button for 3 seconds to activate or deactivate CHILD LOCK.

  • Page 16: Explanation Of Each Process

    5-4. EXPLANATION OF EACH PROCESS Process Explanation Stay • Electrical power is supplied • Washer is ready to work and the micom is in the active mode. Water • After loading laundry and selecting a course and a cycle, water is supply supplied and drum rotates.
  • Page 17 Process Explanation Intermittent • To reach the correct set speed, the motor rotates clockwise and spin counterclockwise directions after spin process starts. • If the water level frequency is lower than 23.0 kHz, a washer senses suds and starts suds removal process. Rinse •...

  • Page 18: Wiring Diagram/Program Chart

    6. WIRING DIAGRAM/PROGRAM CHART...

  • Page 20: Test Mode

    Water level frequency (25~65) 11 times Power off and unlock the door. Turn off all lamps. : WM2016CW / : WM2233H* 7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY Press the Delay and Beeper button simultaneously. The digits indicate the water level frequency ( x.1 kHz ).

  • Page 21: Troubleshooting

    8. TROUBLESHOOTING 8-1. SAFETY CAUTION There’s built-in AC 120V and DC power in output terminal of PWB assembly in common. Be careful electric shock when disconnecting parts while trouble shooting. (Wear Electro Static Discharge gloves when working.) After cutting off the power when changing PWB assembly, disconnect or assemble. Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when delivering or keeping it.
  • Page 22 ERROR SYMPTOM CAUSE • The connector (3-pin, male, white) in the MOTOR HARNESS is not connected to the connector (3-pin, female, white) of STATOR ASSEMBLY. LOCKED • The electric contact between the connectors (3-pin, male, MOTOR white) in the MOTOR HARNESS and 4-pin, female, white ERROR connector in the MAIN PWB ASSEMBLY is bad or unstable.

  • Page 23: Troubleshooting Summary

    8-3. TROUBLESHOOTING SUMMARY...

  • Page 24: Troubleshooting With Error

    8-4. TROUBLESHOOTING WITH ERROR INLET VALVE ERROR Replace the Is the voltage of the inlet INLET VALVE valve connector 120 V AC? ASSEMBLY. (Check the all terminal of INLET VALVE ASSEMBLY displayed? while the power is on.) Check the AIR When you press both CHAMBER DELAY WASH button and...
  • Page 25 DRAIN ERROR Is the coil of the drain Replace the displayed? pump too high or low? DRAIN (resistance of the coil PUMP is 10-20Ω) ASSEMBLY. (Refer to 9-4 Pump motor Reconnect or Is the connector connected assembly) repair to pump motor assembly the connector.
  • Page 26 - part of motor LOCKED MOTOR ERROR displayed? Reconnect Check the connectors below. Motor the connector. Is the connector disconnected (connector / or disassembled? wire / motor) (motor hall sensor connector, Replace Is rotor magnet cracked? motor drive connector) the ROTOR - part of main PWB assembly (RD4, NA1) Magnet...

  • Page 27: Door Open Error

    DOOR OPEN ERROR Replace the Is there clicking sound once displayed? or twice when the ASSEMBLY. START/PAUSE button is pressed to start the cycle? Reconnect or Is the connector connected repair to door switch or main PWB Replace the Is DOOR SWITCH the connector disconnected? DOOR...

  • Page 28: Unbalance Error

    UNBALANCE ERROR OVER FLOW ERROR displayed? displayed? When you press both Check the AIR Put laundry Does the laundry lean DELAY WASH button and CHAMBER evenly toward one side, not evenly BEEPER button and the tube In the DRUM put in the DRUM assembly? simultaneously, is the (clogged).
  • Page 29 PRESSURE SENSOR ERROR displayed? Reconnect or Is the connector connected repair to pressure sensor the connector disconnected or disassembled? Replace the Is the resistance of the pressure pressure sensor out of switch range? (pin 1~ pin 3) (21~23 Ω ±10%) Fix the air Is the AIR CHAMBER and chamber...

  • Page 30: Troubleshooting Else

    8-5. TROUBLESHOOTING ELSE CAUTION 1. Be careful of electric shock if disconnecting parts while troubleshooting. 2. First of all, check the connection of each electrical terminal with the wiring diagram. 3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly. NO POWER Replace the Is LED on while the power...
  • Page 31 BUTTON DOESN’T WORK Reconnect or Replace the Is the connector connected Is the display PCB broken? Repair DISPLAY to Main PWB / Display (check the buzzer sound the connector PWB disconnected or and LED light while push disassembled? ASSEMBLY the button.) Repair the Is the button of panel stuck? button...
  • Page 32 VIBRATION & NOISE IN SPIN Remove the transit bolts Have all the transit bolts and base packing and Base packing. been removed? Move the washer or Is the washer installed on a solidly constructed reinforce the floor. floor? Check if the washer is perfectly level as follows: Check the leveling of the washer with a level and check that the washer is stable.
  • Page 33 If it still has severe vibration and noise, regulate a specific spin speed that generates excessive vibration and noise as follows: 1) Put an unbalance part (rubber) inside of the drum. 2) Start the QC test mode (Refer to section 7-2). 3) Press Delay Wash button, then ‘...
  • Page 34 DETERGENT DOES NOT FLOW IN Refer to Is water supplied? NO WATER SUPPLY Are receptacles correctly connected to the Check the wiring. terminals of the INLET VALVE ASSEMBLY? Put the detergent in the correct place. Has detergent been put in the correct compartment of the dispenser? Is the detergent caked or hardened? Clean the dispenser.
  • Page 35 SOFTENER/BLEACH DOES NOT FLOW IN Refer to Is water supplied? NO WATER SUPPLY Check the wiring on the Are the plugs correctly connected to the terminals of dispenser. the INLET VALVE ASSEMBLY? Put it in the correct Is liquid softener/bleach put in the correct compartment.

  • Page 36: Component Testing Information

    9. COMPONENT TESTING INFORMATION WARNING When Resistance (Ohm) checking the Component, be sure to turn the power off, and do voltage discharge sufficiently. 9-1. FILTER ASSEMBLY (LINE FILTER) Wiring Circuit in the MAIN PWB / Wiring Diagram diagram RI CI MAIN PWB ASSEMBLY Test...

  • Page 37: Door Lock Switch Assembly

    9-2. DOOR LOCK SWITCH ASSEMBLY Wiring Circuit in the MAIN PWB / Wiring Diagram diagram MAIN PWB MICOM Relay Relay Common terminal of Valve Door switch The Door Lock Switch Assembly consists of a Heating PTC, a Bimetal, Function a Protection PTC, and a Solenoid. It locks the door during a wash cycle. 1.
  • Page 38 Test points Result Test Points Result Remarks 700-1500 Ω (2) to (4) At 77 °F °C 60-90 Ω (3) to (4) At 77 °F °C (4) to (5) Infinity (2) to (4) 120 Vac Voltage Input...

  • Page 39: Stator Assembly

    9-3. STATOR ASSEMBLY Wiring Circuit in the MAIN PWB / Wiring Diagram diagram MAIN PWB NA1NA MICOM Function The DD motor can be driven from stopped to maximum speed in infinite steps in either direction. There are 36 poles on the stator; 12 permanent magnets spaced around the rotor. There are no brushes to wear out.
  • Page 40 The hall sensor determines the speed and direction of the motor. It also can read that the load is off balance when the drum speed fluctuates. Test point - Voltage Testing Hall Sensor at Stator Result (Hall Sensor) (2) (4) (1) (3) (5) If measuring voltage from the Main PCB Assembly to the Hall Sensor, use the following steps:...
  • Page 41 7. To measure output signal voltage from the hall sensor, carefully move test leads to terminals 1 to 4, blue and gray. Slowly rotate motor rotor by hand. You should read a pulsing 10 Vdc. If 10 Vdc is measured from 1 to 4, move lead on blue wire to red wire, terminal 2.

  • Page 42: Pump Motor Assembly

    9-4. PUMP MOTOR ASSEMBLY Wiring Circuit in the MAIN PWB Wiring Diagram diagram MAIN PWB 1 2 3 1 2 3 1 2 3 4 1 2 3 3 2 1 MICOM 3 2 1 CONNECTOR Pump Driving circuit DRAIN PUMP PUMP * Each circuits of loads in wiring diagram are all same.

  • Page 43: Inlet Valve Assembly

    9-5. INLET VALVE ASSEMBLY Wiring Circuit in the MAIN PWB diagram MICOM CONNECTOR Inlet valve driving circuit INLET VALVE Wiring Diagram MIAN PWB COMMON GY VT (BK) 2 RD MAIN BLEACH WASH WASH VALVE INLET VALVE * Each circuits of loads in wiring diagram are all same. Depending on the cycle and water temperature, the controller will energize the hot or cold Function water valve solenoids to meet the selected water temperature.

  • Page 44: Thermistor Assembly

    9-6. THERMISTOR ASSEMBLY Wiring Circuit in the MAIN PWB / Wiring Diagram diagram MAIN PWB MICOM WASH THERMISTOR The thermistor (temperature sensor) is used to monitor water temperature in the tub Function or Steam Generator. Test Test Result Remarks points Points (tolerance ±5%) 39.5 kΩ...

  • Page 45: Disassembly Instructions

    10. DISASSEMBLY INSTRUCTIONS Be sure to unplug the machine before disassembling and repairing the parts. CONTROL PANEL ASSEMBLY Remove two screws on the back of the top plate. Pull the top plate backward and upward as shown. Disconnect the connectors from the Main PWB assembly.
  • Page 46 Remove nine screws from the control panel assembly. Disassemble the Display PWB Assembly.
  • Page 47 MAIN PWB ASSEMBLY Disconnect the POWER connector and SENSOR SWITCH ASSEMBLY. Remove the Protective cover. Disassembled keeping wire. Disconnect the connectors. Remove one screw on the back. Remove the Main PWB.

  • Page 48: Dispenser Assembly

    DISPENSER ASSEMBLY Disassemble the top plate assembly. Pull out the drawer. Push out the DISPENSER ASSEMBLY after unscrewing 2 screws. Unscrew the Clamp nut at the lower part of the dispenser. Disassemble the 4 connectors from the valves. Wire Color Blue Housing (OR-BK) White Housing (WH-BK) Blue Housing (GY-BK)
  • Page 49 CABINET COVER Unscrew the 3 screws from upper of the canbinet cover. Unscrew the screw from filter cover. Put a flat ( -) screwdriver or putty knife into the hinge slots at the bottom of the cover and pry it out. Unscrew the screw from the lower side of the cabinet cover.
  • Page 50 Open the door. Disassemble the clamp assembly. Tilt the cabinet cover. Disconnect the door switch connector. NOTE: When assembling the CABINET COVER, connect the door switch connector. Lift and separate the cabinet cover. Disassemble the clamp assembly. Disassemble the gasket.
  • Page 51 DOOR ① ① Open the door. ② ② Unscrew the 7 screws from the HINGE COVER. ③ ③ Put a flat ( - ) screwdriver into the openng of the hinge, and pull out the hinge cover. ④ ④ Unscrew a screw from the lower side of door. ⑤...
  • Page 52 PUMP ① ① Disassemble the cabinet cover. ② ② Separate the pump hose, the bellows and the circulation hose assembly from the pump assembly. ③ ③ Disassemble the pump assembly in arrow direction. HEATER ① ① Disassemble the cabinet cover. ②...
  • Page 53 MOTOR/DAMPER 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. Unplug the 2 connectors from the stator. Disassemble the damper hinges from the tub and base.

  • Page 54: Exploded View

    11. EXPLODED VIEW 11- 1. CABINET & CONTROL PANEL ASSEMB LY “The following parts are not illustrated" Description Loc No. *Owner’s Manual G001 *Energy Label G002 *Service Manual G004 Printed materials *Wiring Diagram G005 *Quick Start Guides G006 *Installation Sheet G007 F215 WM2016C* : 6201EC1006E...

  • Page 55: Drum And Tub Assembly

    11-2. DRUM & TUB ASSEMBLY K143 WM2016C* : 4417EA1002F K123 WM2016C*/01 : 4417EA1002J K350 K360 K351 F140 K610 K411 K410 K611 K115 K110 K141 K111 K140 K117 WM2016C* : ACQ32362101 WM2016C*/01 : ACQ32362103 F315 F310 F465 K572 K571 WM2016C* : 4280FR4048C WM2016C*/01 : 4280FR4048G F463...

  • Page 56: Dispenser Assembly

    11-3. DISPENSER ASSEMBLY F323 F322 F462 F321 F300 F170 F160 F220 F430 F441 F120 WM2016C* : EAD35511501 WM2016C*/01 : EAD35511503 HOT (RED) A275 F130 COLD (BLUE) F432 A276...

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