LG WD1485ATB Service Manual
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LG WD1485ATB Service Manual

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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFUL LY TO DIAGNOSE PROBLEMS
CORRECT LY BEFORE OFFERING SE R VICE.
MODEL :
website :
http://biz.lgservice.com
e-mail : http://LGEservice.com/techsup.html
WD1485ATB
(1~9)

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Summary of Contents for LG WD1485ATB

  • Page 1 : http://biz.lgservice.com e-mail : http://LGEservice.com/techsup.html WASHING MACHINE SERVICE MANUAL CAUTION READ THIS MANUAL CAREFUL LY TO DIAGNOSE PROBLEMS CORRECT LY BEFORE OFFERING SE R VICE. MODEL : WD1485ATB (1~9)

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ..........................3 2. FEATURES & TECHNICAL EXPLANATION ..................4 3. PARTS IDENTIFICATION ......................... 6 4. INSTALLATION ..........................7 5. OPERATION ........................... 12 6. WIRING DIAGRAM / PCB LAYOUT ....................14 7. TROUBLESHOOTING ........................19 7-1.BEFORE PERFORMING SERVICE ..................19 7-2.LOAD TEST MODE ........................

  • Page 3: Specifications

    1. SPECIFICATION ITEM WD1485ATB (1~9) POWER SUPP LY 127 V, 60 Hz PRODUCT WEIGHT 69 kg WASHING 150 W ELECTRICITY SPIN 530 W CONSUMPTION DRAIN MOTOR 35 W WASH HEATER 1200 W DRY HEATER WASH 50 rpm REVOLUTION SPEED SPIN...

  • Page 4: Features & Technical Explanation

    2. FEATURES & TECHNICAL EXPLANATION 2-1. FEATURES Inverter Direct Drive system The advance Brushless DC motor directly drives the drum without belt and pulley. 6 motion Washer is able to perform various drum actions or a combination of different actions depending on the wash program selected.
  • Page 5 2-2. DETERMINE WASHING TIME BY FUZZY LOGIC To get the best washing performance optimal time is determined by sensing the water temperature, selected washing temperature and laundry amount. water temperature washing time the best selected FUZZY washing rinse time washing LOGIC temperature performance...

  • Page 6: Parts Identification

    3. PARTS IDENTIFICATION Illustrative Image Shipping Bolts Power plug If the supply cord is damaged, it must be replaced by the manufacturer or its authorized Drawer service technician in order to avoid a hazard. Control Panel Drum Door Drain Hose Drain Plug Drain Pump Filter Adjustable Feet...

  • Page 7: Installation

    4. INSTALLATION INSTALLATION The appliance should be installed as follows. Check the conditions of installation area. 1. Check level ground. horizontal On raised foundations or upper level homes, the vibrations can be caused by the type of flooring. It may be necessary to move machine to a different area in the home or have the floor...
  • Page 8 se spanner to remove transit bolts. Without removal of transit bolts pin noise shaking X 4 EA Transit bolts Confirm the distance between the appliance and the wall. If the distance is less than 2cm, More than 2cm the water supply hose will kink fold The tap connection and hose connection must be parallel.
  • Page 9 Connect Drain Hose. If the drain hose is not installed properly, the unit will not drain properly. This allows water to back flow into the unit which can cause odors. Refer to Owner Manual for proper drain hose installation. The odor could also be coming from the home’s drain to which the drain hose is attached. Laundry tub about 100 cm Hose...
  • Page 10 Check the horizontality with a level (Gage). Step 1 If washing machine legs are loose or not Screwed in, then tighten with the spanner wrench. Using the level, level the washing machine from front to back and side to side. A level Higher Tighten...

  • Page 11: Operation

    5. OPERATION Additional programs Cycle Selector POWER Start/Pause Option Button...
  • Page 12 Dry Selector knob EST. Time remaining Tub Clean Spin, Temp. Button Child Lo ck...

  • Page 13: Wiring Diagram / Pcb Layout

    6.WIRING DIAGRAM / PCB LAYOUT Full Wiring Diagram Base/Line PRESSURE DRY C/DUCT WASH SWITCH DISPLAY PCB MOTOR V U W CON4 MAIN PCB GN/YL NOISE FILTER MAIN INLET VALVE DOOR LOCK SWITCH DRAIN CIRCULATION POWER CORD PUMP PUMP...
  • Page 14 PCB Layout (Main) ry Heater Earth Wire Connector ry Fanmotor...

  • Page 15: Troubleshooting

    7. TROUBLESHOOTING 7-1. Checking before SVC Before servicing ask the customer what the trouble is. Check the adjustments. (Power supply : V~, Removal of transit bolts etc..) Check the troubles referring to the troubleshooting. Decide service steps referring to disassembly instructions. Then, service and repair.

  • Page 16: 7-3.How To Check The Water Level Frequency

    7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY Press the Rinse+ Temp button simultaneously. The digits means water level frequency. (10-1kHz) ex) 241 : Water level frequency = 241 x 10-1kHz 7-4. HOW TO CHECK THE TEMPERATURE OF EACH THERMISTOR AT OPERATING CONDITION.

  • Page 17: 7-5.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 the 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 only will be blinked.

  • Page 18: 7-6.Troubleshooting With Error

    7-6. TROUBLESHOOTING WITH ERROR Water Inlet Error (IE) [Note] Environmental safety check list 1. No water tap leakage & freeze. 2. No entanglement of water supply hose. 3. No water shortage. 4. No water supply hose leakage. 5. No the inlet filter clogged. Is the water tap closed? Check the Water tap...

  • Page 19: Ue (Unbalanced Error)

    Unbalanced Error (UE) The few items of clothing will clump together Does the load lean toward one and their weight will be in one place on the drum, side, or is the load a few items? throwing the weight off during spin mode. So add some laundry to overcome UE error.

  • Page 20: Oe (Water Outlet Error)

    Water Outlet Error (OE) Check drain hose for kink and straighten the Hose. Is the drain hose kinked ? Drain Hose Check & Clean Pump Filter. Is the Pump filter clogged ? This kind of accumulation on the drain filter not only prevents proper drainage, but also will promote bacteria growth and cause odors.
  • Page 21 Over Flow Error (FE) Replace the Inlet Valve assembly. Is the water coming in drawer continuously? After power off for 10 sec. and power on. Does the water level over reference line and Is the water level frequency 26.2Khz ? Or does the water level over reference line and is the water level frequency 26.2Khz ? * Water level frequency...

  • Page 23: Pe (Pressure Sensor S/W Error)

    Pressure Sensor S/W Error (PE) Is the Connector connected correctly to Reconnect or repair the Connector. Main PCB and the Pressure Switch Or replace the Harness. Or is the Harness alright ? Is the resistance of the Pressure Switch Replace the Pressure Switch.

  • Page 24: De (Door Open Error)

    Door Open Error (dE) Close the door totally. Is the door closed? Is the Door assembly in line with door Lift up & Close the door. switch ? If the dE is displayed, Replace the Door Bracket. Scratch by Latch Hook Touching Does the Spring...

  • Page 25: Te (Thermistor (Heating) Error)

    Thermistor (Heating) Error (tE) Is the Connector connected correctly to Reconnect or repair the Connector. Main PCB and the Thermistor and the Heater? Or replace the Harness. Or is the Harness alright ? Heater for Washing Heater for Steam Replace the Thermistor. Is the resistance of the Thermistor out of range 44 ~...
  • Page 26 Motor Locked Error (LE) [Pre Check] • Gentle wash cycles, such as Perm Press, Delicates, Hand Wash, and Wool/Silk should only be used for smaller loads. Because these cycles are more gentle in tumbling and spinning, putting too much in the drum can register an issue with the motor.
  • Page 27 Disassemble the Hall Sensor 1) Disassemble the hook of Hall Sensor by (-) driver. 2) Pull up Hall Sensor slowly as shown in picture. Caution If you disassemble by force,not following the directions, the hooks of stator(red circled) might broke up. Hence need change of stator assembly.
  • Page 28 Dry Heater Error (dHE) Connector Is the connected correctly to Reconnect or repair the Connector. Main PCB and the Dry Heater Motor? Or replace the Harness. Or is the Harness alright? Is the resistance of the Thermistor out of range Replace the Thermistor.
  • Page 29 Dry Heater Trouble Dry Heater After power off, is the resistance of out of Replace the Heater. range 33~37Ω? Thermostat closed ? Replace the Thermostat. When checking voltage between connectors(1,2) Replace the PWB assembly (main). on drying, is the voltage AC 220-240V as the figure ?
  • Page 30 Dry Fan Motor Trouble Is the Connector connected correctly to Reconnect or repair the Connector. Main PCB and the Dry Heater Fan Motor Or replace the Harness. Or is the Harness alright? Are the resistance same between terminal points? Replace the Dry Fan Motor.

  • Page 31: No Power

    8. TROUBLESHOOTING WITHOUT ERROR CODES No Power Is the Power Plug connected Reconnect Power Plug firmly. firmly to the power outlet? Check the fuse or And is the supply voltage reset the circuit breaker. 220~240V AC? Is Multi-plug socket used ? Don’t use Multi-plug socket.

  • Page 32: Vibration & Noise During Spin

    Vibration & Noise In Spin Have all the Transit Bolts and the Base Packing Remove the Transit Bolts been removed? Base Packing. Washer Base Packing Packing Support Refer to INSTALLATION. (Page 7)

  • Page 33: Detergent & Softener Does Not Flow In

    Detergent & Softener does not flow in Refer to [Water Inlet Error (IE)] Is water supplied? (page 21) Is detergent & softener put in the correct compartment of the drawer? Only softener Put it in the Correct Position. Main Wash Pre Wash (Powder) (Powder)

  • Page 34: Water Leak

    Water Leak 1. Water Leak from Dispenser Is the Dispenser Tray Damaged or warped? Replace the Dispenser Tray. Is detergent & softener put in Put it in the Correct Position. the correct compartment of the drawer? Only softener Reference (Amount of Detergent & Softener) Main Wash Pre Wash Detergent...
  • Page 35 2. Water Leak from Dispenser Are the gasket (seal) Clean the periphery of Gasket Door regularly. and door cleaned regularly? Is the door or gasket damaged? Replace the damaged parts. 3. Unknown – Water on Floor Are the inlet hoses loose or cracked/split? Replace the Inlet Hoses.

  • Page 36: 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. 2 The plate assembly(Top) is pulled back and then upward to arrow direction. 3 The cover(Inner) is disassembled. 1 Pull out the drawer and unscrew 2 screws.
  • Page 37 PWB ASSEMBLY(MAIN) 1 The back cover is removed. 2 One screw is unscrewed. 3 Pull the PWB assembly(Main) to arrow direction 4 Two screws is unscrewed. 5 The cover of PWB assembly(Main) is removed. 6 Disconnect connector from the wiring. PWB ASSEMBLY(POWER) 1 The plate assembly(Top) disassembled.
  • Page 38 INLET VALVE 1 Disconnect the wiring connector. 2 Remove the valve by two screws of the valve holder. When reconnecting the connector VALVE (PRE) GY/WH - BK VALVE (MAIN) WH/BK - BK VALVE (DRY) YL/BK - BK • Rating : 127V 60Hz •...
  • Page 39 CABINET COVER 1 The plate assembly(Top) is disassembled. 2 Pull out the drawer and unscrew 2 screws. 3 Lift the side the Control Panel Assembly and pull it out 1 Two screws is unscrewed. 2 Push out PANEL ASSEMBLY, CONTROL after Push the hook( ) below.
  • Page 40 1 Lift and separate the cabinet cover. NOTE: When assembling the CABINET COVER, connect the Door S/W connector. 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.
  • Page 41 ROTOR ASSEMBLY, STATOR ASSEMBLY, FRICTION DAMPER 1 Remove the back cover. 2 After loosening the bolt, Rotor, pull out the rotor. 1 Remove the 6 bolt from the stator. 2 Disconnect the 2 connectors. Motor Stator Hall Sensor U V W Common •...
  • Page 42 PUMP 1 Remove pump outlet hose. 2 Remove tub pump bellows. 3 Remove cap(Remaining Hose). 4 Disconnect the wiring. 5 Three screws are unscrewed from the cabinet. 6 Remove the pump to arrow direction. • Rating : 127V 60Hz • Resistant : 162~176Ω HEATER 1 Loosen the nut.
  • Page 43 WHEN FOREIGN OBJECT STUCK BETWEEN DRUM AND TUB 1 Remove washing heater. 2 Remove the foreign object(wire,coin,etc) by inserting long bar in the hole. SWITCH ASSEMBLY, SAFETY 1 Unscrew 4 screws from the back cover. 2 Disconnect the wiring connector. 3 First, Press hook and turn the safety switch assembly switch assembly safety.

  • Page 44: Exploded View And Part List

    10. E XPLODE D VIE W AND PART LIS T 10- 1.THE PART LIS T OF C AB INE T AS S E MB LY A154 A140 A110 A106 A102 A153 A103 A104 A152 A151 A150 A101 A141 A131 A100 A430 A130 A440...
  • Page 45 10-2 THE EXPLODED VIEW OF CONTROL PANEL & DISPENSER ASSEMBLY F324 F300 F321 F160 F462 F432 F340 F225 F430 F220 F441 F120 F215 F110 F216 F210...
  • Page 46 10-3. THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY K143 K350 K360 K123 K351 F140 K411 K121 K122 K410 K125 F310 F464 K146 F320 K320 F466 K111 M105 K110 K141 K140 K105 K115 K410 K130 K135 K610 K512 K510 K560 K611 K530 K131...
  • Page 47 10-4. THE EXPLODED VIEW OF DRYER M100 M240 M130 M120 M111 M216 M110 M210 M230 M215 M101 M220 M140...

This manual is also suitable for:

Wd1485atb1Wd1485atb9Wd1485atb series

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