LG WV6-1409W Service Manual
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LG WV6-1409W Service Manual

LG WV6-1409W Service Manual

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WASHING MACHINE
SERVICE MANUAL
CAUTION
READ THIS MANUAL CAREFULLY TO DIAGNOSE PROBLEMS
CORRECTLY BEFORE OFFERING SERVICE.
BEFORE SERVICING THE WASHING MACHINE, UNPLUG THE POWER
CORD TO AVOID THE RISK OF AN ELECTRIC SHOCK.
WHEN SERVICING IN TERNAL PARTS, USE ONLY SERVICE PARTS
SUPPLIED FROM LG .
AFTER SERVICING THE ELECTRIC WIRE, INSURE THAT INSULATION
TAPE IS APPLIED TO PREVENT AN ELECTRICAL SHORT.
MODEL :
WV6-1409W
1

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Questions and answers

Steve
July 5, 2025

Can you please tell me the part number for K612 in the service manual exploded diagram (damper and pins) for model WV6-1409W. Thank you.

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Summary of Contents for LG WV6-1409W

  • Page 1 BEFORE SERVICING THE WASHING MACHINE, UNPLUG THE POWER CORD TO AVOID THE RISK OF AN ELECTRIC SHOCK. WHEN SERVICING IN TERNAL PARTS, USE ONLY SERVICE PARTS SUPPLIED FROM LG . AFTER SERVICING THE ELECTRIC WIRE, INSURE THAT INSULATION TAPE IS APPLIED TO PREVENT AN ELECTRICAL SHORT.

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ..........................3 2. FEATURES & TECHNICAL EXPLANATION ..................4 3. PARTS IDENTIFICATION ......................... 6 4. INSTALLATION ..........................8 5. OPERATION ........................... 13 6. WIRING DIAGRAM / PCB LAYOUT ....................18 7. TROUBLESHOOTING ........................21 7-1.BEFORE PERFORMING SERVICE ..................21 7-2.LOAD TEST MODE ........................

  • Page 3: Specifications

    1. SPECIFICATION ITEM Refer to 1 page POWER SUPPLY 220 V - 240 V ~,50Hz/60Hz PRODUCT WEIGHT 70kg WASHING 155 W SPIN 490 W ELECTRICITY DRAIN MOTOR 20 W CONSUMPTION WASH HEATER 1900-2250W WASH 46 rpm REVOLUTION F4V5*BP0WE : No Spin / 400 / 800 / 1000 / 1200 / 1400 SPIN SPEED 0.1 ~ 0.8 MPa (1.0 kgf / cm...

  • Page 4: Features & Technical Explanation

    2. FEATURES & TECHNICAL EXPLANATION 2-1. Product Features Inverter Direct Drive system The advanced 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. Combined with a controlled spin speed and the ability of the drum to rotate both left and right, the wash performance of the machine is greatly improved, giving you perfect results every time.
  • 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 IDENTIFCATION Front View Control Panel Detergent dispenser drawer Drum Door Cover cap Drain pump filter Drain plug Adjustable feet Rear View Power plug Transit bolts Drain hose...
  • Page 7 3. PARTS IDENTIFCATION Accessories * This feature may vary depending on the model purchased. Cold water inlet hose* Spanner Caps for covering transit bolt holes* Anti-slip sheets* Elbow bracket for securing drain hose* Tie strap* Specifications Model F4V5VBP0WK Capacity Power Supply 220-240 V~, 50 Hz Dimension 600 mm X 565mm X 850 mm...

  • Page 8: 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. necessary to move machine It may be to a different area in the home or have the floor...
  • Page 10 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 11 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 12: Operation

    Test operation Preparation Press the power button. Press the START/PAUSE button. washing. · Connect the power plug to the · In case of Coloreds program. outlet. · Connect the inlet hose. Check the water heating. Check automatic reverse turn. Check the water supply. ·...
  • Page 13 5. OPERRATION How to use washer Control panel SmartDiagnosis function is available only for the products wit h LED display a SmartDiagnosis m ark. Power Button Start/Pause Options Program dial Button Power Program Dial Press the Power button to turn power on Programs are available according to th e and off.
  • Page 14 How to use washer Options Intensive ( ) : If the laundry is normal and heavily soiled, “Intensive” option is effective. Rinse + ( ) : Add rinse once. Dealy End : You can set a time delay so that the washing machine will start automatically and finish after a specifed time interval.
  • Page 15 How to use washer Temp. Pre Wash By touching the Temp. button the water If the laundry is heavily soiled, “Pre Wash” temperature can be selected. course is effective. - Cold 1. Touch the Power button. - 20℃, 30℃, 40℃, 60℃, 95℃ 2.
  • Page 16 How to use washer Child Lock Select this function to lock the buttons on the control assembly to prevent tampering "Child Lock" can be set only during the washing cycle. Locking the control pane l 1. Touch and hold the Delay End and Add Item for 3 seconds.
  • Page 17 How to use washer Tub Clean Tub Clean is a special cycle to clean the inside of the washing machine. A higher water level is used in this cycle at higher spin speed. Perform this cycle regularly . 1. Remove any clothing or items from the washer and close the door.

  • Page 18: Wiring Diagram/Pcb Layout

    WIRING DIAGRAM/PCB LAYOUT...
  • Page 19 PCB Layout (Main) 19 19...
  • Page 20 PCB Layout (Sub) 20 20...

  • Page 21: Troubleshooting

    7. TROUBLESHOOTING 7-1. CHECK BEFORE SERVICE Before servicing ask the customer what the trouble is . Check the adjustments. (Power supply :220-240V~, Removal of transit bolts etc..) Check the troubles referring to the troubleshooting. Decide service steps referring to disassembly in structions . Then, service and repair.

  • Page 22: 7-3.How To Check The Water Level Frequency

    7-3. HOW TO CHECK THE WATER LEVEL FREQUENCY Touch the Spin Intensive button simultaneously. Keeping touch, the digits indicate the water level frequency.

  • Page 23: 7-4.Error Display

    7-4. 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 all other errors, if the error is not resolved within 4 min., the power will turn o ff automatically and the error only will blink.
  • Page 24 ERROR SYMPTOM CAUSE The connector in the LEAD WIREASSEMBLY is not connected to the connector of STATOR ASSEMBLY. MOTOR LOCKED Reconnect or repair the connector. ERROR Page 36 The washer experienced a power failure POWER Press the start/pause button FAILURE Supply warm water into the drum and unfreeze drain hose and drain pump.
  • Page 25 Symptoms Possible Cause & Solution The amount of liquid detergent in the detergent reservoir did not decrease. ezDispense ERROR 1 After putting the detergent into the detergent reservoir, it was left for a long time and the detergent hardened. • Clean the detergent reservoir thoroughly, fill it with liquid detergent, install it in the drawer, and run a wash cycle.

  • Page 26: 7-5.Troubleshooting With Error

    7-5. TROUBLESHOOTING WITH ERROR Symptom Check Point 1.INLET VALVE 1.Check Electric Wiring. ERROR 2.Check Inlet valve’s Resistance. 3.Check Inlet valve clogged. 4.Voltage of the inlet valve’s connector. - LQC mode : Valve running with 13.6V ± 10% -In normal cycle : Value running with 6.8V±10% Need to check 2s later from valve start to running Main Valve...

  • Page 27: Ie (Water Inlet Error)

    Water Inlet Error (IE) [Note] Environmental safety check list 1. No water tap leakage or freeze 4. No entanglement of w ater supply hose. 2. No water shortage. 5. No water supply hose leakage. 3. The inlet filter is not cloggeed. Is the water tap closed? Check the and open it fully.

  • Page 28: 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 29: 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 30 Is the Standpipe Height greater Observe Standpipe Height requirements than 1.0 m above the floor? of 1.0m maximum. - Your washer will not be able to drain out water adequately, if the standpipe exceeds 1.0 m. In this case, water may flow back into the washer. When there is no water in the Check the Air Chamber...

  • Page 31: Fe (Overflow Error)

    FE (Overflow Error) Power off for 10sec. Then power on. Is the water level over reference line and is the water level frequency under 21.3kHz? * Water level frequency - Touch and Hold ‘Spin’ & ‘Intensive’ simultaneously . Drain out the water and then Is water continuousl y check the Air Chamber...

  • Page 32: Pe (Pressure Sensor S/W Error)

    Pressure Sensor S/W Error (PE) Is the connected correctly to Connector Reconnect or repair the Connector. and the Main PCB Pressure Switch Or replace the Harness. Is the alright ? Harness Is the resistance of the Pressure Switch Replace the Pressure Switch.
  • Page 33 Symptom Check Point 1.PRESSURE 1.Check Electric Wiring. SENSORERROR(PE) 2.Check Pressure sensor’s Resistance. 3.Check Air Chamber and Tubeclogged. Pressure Sensor 33 33...

  • Page 34: De2 (Door Open Error)

    Door Open Error (dE2) Close the door fully. Is the door closed? Is the Door assembly in line with door switch ? Scratch by Latch Hook Touching Lift up & Close the door. If the dE is displayed, Replace the Door Bracket.
  • Page 35 Symptom Check Point 1. DOOR OPEN 1.Check Electric Wiring. ERROR(dE) 2.Check latch hook sping.(Cracked) 3.Check Door switch’s Resistance. 4.Check Voltage of Door switch’s connector. 13.1V 35 35...

  • Page 36: Te (Thermistor (Heating) Error)

    Thermistor (Heating) Error (tE) Is the connected correctly to Connector Reconnect or repair the Connector. and the and the Heater? Main PCB Thermistor Or replace the Harness. Is the Harness alright ? Heater for Washing Replace the Thermistor. Is the resistance of the Thermistor out of Range 44 ~ 53k at 25℃.
  • Page 37 Symptom Check Point 1. HEATING ERROR(tE) 1.Check Electric Wiring. 2.Check Heater’s Resistance. 3.Check Thermistor’s Resistance. 4.Water Leaked into the Thermistor’s Connector. Wash Heater Resistance Main Heater Wash Heater 12 ~ 18 (1) ~ (2) 37 37...
  • Page 38 Wash Thermistor Resistance Remarks Main Thermistor [k ] ℉ (℃) 39.5 86(30) 26.1 104(40) Wash NA3 4 12.1 140(60) Thermistor NA3 5 158(70) (1) ~ (2) 203(95) 221(105) 38 38...

  • Page 39: Le (Motor Lock Error)

    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 40 ED1 – BREAKDOWN DETERGENT PUMP Is the detergent hardened in the detergent compartment? Please clean the detergent compartment. Please replace detergent pump motor(F350) How to clean detergent compartment Clean the insides of the compartments with warm water. • Use a soft cloth or brush to clean and to remove any residue. •...
  • Page 41 ED2 - OPEN CIRCUIT DETERGENT PUMP Is connector assembled properly? Please assemble connector properly. Is the wire broken or damaged? Please replace Multi,harness(F352) Outlet (Pumping) Check whether Detergent/Softener is coming out or not Power Supplier DC 13.2(rated Voltage) Please replace detergent pump motor(F350)
  • Page 42 ED3 – BREAKDOWN SOFTNER PUMP Is the detergent hardened in the detergent compartment? Please clean the detergent compartment. Please replace detergent pump motor(F350) How to clean detergent compartment Clean the insides of the compartments with warm water. • Use a soft cloth or brush to clean and to remove any residue. •...
  • Page 43 ED4 - OPEN CIRCUIT SOFTNER PUMP Is connector assembled properly? Please assemble connector properly. Is the wire broken or damaged? Please replace Multi,harness(F352) Outlet (Pumping) Check whether Detergent/Softener is coming out or not Power Supplier DC 13.2(rated Voltage) Please replace detergent pump motor(F350)
  • Page 44 ED5 – COMMUNICATION DEFECT Is connector assembled properly? Please assemble connector properly. Is the connector that communicates with the display, Please assemble connector properly. PCB properly assembled? Please replace PCB Assembly,Display(F110)
  • Page 45 OPn - DRAWER OPEN Is the drawer closed properly? Please close drawer properly. Is there any damage on the back of the drawer? Please replace drawer assembly. Is connector assembled properly? Please assemble connector properly. Is connector assembled properly? Please replace switch(F351) ①Can it be stucked when you press it? ②Is there an infinite resistance for each function? (if defective)
  • Page 46 Symptom Check Point 1. NO POWER 1.Check Electric Wiring. 2.Check the Customer’s outlet. 3.Check Noise Filter. 4.Check LED on in Main PWB N oi se Fi l t er Resistance Noise Filter [Ω ] WH1 (1) ~ RD1 (3) WH1 (3) ~ RD1 (1) 46 46...

  • Page 47: Troubleshooting Without Error Codes

    8.TROUBLESHOOTING WITHOUT ERROR CODES PF (Power Failure or no power) Is the Power Plug connected Reconnect firmly. Power Plug 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 socket.

  • Page 48: Vibration & Noise During Spin

    Vibration & Noise During Spin Have all the Transit Bolts been removed? Remove the Transit Bolts Washer Packing Support Refer to INSTALLATION . (Page 7) 48 48...

  • Page 49: Detergent & Softener Does Not Flow In

    Detergent & Softener does not flow in Is water supplied? Refer to [Water Inlet Error (IE) ] (page 23) Is detergent & softener put in the correct compartment of the drawer? Manual Main Wash Detergent Compartment Put it in the Correct Position Dispenser 2 Dispenser 1...
  • Page 50 When detergent can’t be supplied Main Valve 『When there is no water supply』 Is it supplying water? Refer to check list Is the connection and hose connected to the Connect correctly by referring water supply hose properly? to the wiring diagram Manual Detergent Box Did you dose detergent for the selected Dose the detergent correctly...
  • Page 51 When fabric softener can’t be supplied Main Valve 『When there is no water supply』 Is it supplying water? Refer to check list Is the connection and hose connected to the Connect correctly by referring water supply hose properly? to the wiring diagram (Refer to the wiring diagram in the right of the product.) Manual Detergent Box...

  • Page 52: Water Leak

    2. Water Leak from Dispenser Are the gasket (seal) Clean the periphery of regularly. Gasket Door 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 53: Before Using The Tag On Function

    Check the energy consupmtion of the recently icon( ) on the control panel is lit. used cycles and monthly average. • LG Smart ThinQ is not responsible for any network connection problems or any faults, malfunctions, or errors caused by network Smart Diagnosis connection.
  • Page 54 Conformity may be requested through the copyright notices are available for download. following postal address: LG Electronics will also provide open source code to you on CD-ROM for a charge covering LG Electronics European Shared Service Center the cost of performing such distribution (such as B.V.
  • Page 55 Press the Power button to turn on the appliance, it has the capability of transmitting washing machine. Do not press any other data to a smart phone using the LG Smart ThinQ buttons or turn the programme knob. application or via the phone to the LG Customer Information Centre.
  • Page 56 Cleaning the Interior WARNING • Unplug the washing machine before cleaning • Use a towel or soft cloth to wipe around the to avoid the risk of electric shock. Failure to washing machine door opening and door glass. follow this warning may result in serious injury, •...
  • Page 57 Cleaning the Drain Pump Filter CAUTION and Performing an Emergency • Be careful when draining, as the water may be Water Evacuation hot. The drain filter collects threads and small objects • Run the drum cleaning programme once a that may have been accidentally left in the clothes. month (or more often, as needed) to remove Make sure that the filter is clean every six months excess detergent and other debris.
  • Page 58 Open the lids. Securely close the covers on the ezDispense compartments. Clean the inserts with warm water. • Rinse the drawer in warm water to dissolve Wipe off any moisture with a dry towel or cloth the detergent residue or softener scale. after cleaning.

  • Page 59: Part Inspection

    9. Par t i nspect i on 59 59...

  • Page 60: 9-2.Door Lock Switch Assembly

    Vibration Sensor RD BL BK YL Main PCBA RD BL YL BK YL YL/RD OR BK YL BK BR OR WH PL Sub PCB BL YL BK OR YL/RD Pressure Noise Switch Filter 1 2 3 4 1 2 3 4 Drain Door S/W 1 2 3 4 5 6...
  • Page 61 150-240 With Latch With Latch 61 61...

  • Page 62: 9-3.Stator Assembly

    62 62...
  • Page 63 22~35...

  • Page 64: Disassembly Instructions

    10. DISASSEMB L Y INSTRUCTIONS Remove the power cord from the outlet before disassembling or r epairing the unit. CONTROL PANEL ASSEMB LY Screws 1 Unfasten the screws from the parts displayed in the fig. 2 Disassemble the top plate assembly by sliding it back and then lifting it up.
  • Page 65 PWB ASSEMBLY(MAIN) 1 Unscrew two screw of the PWB 2 First Disassembly harness(red circle) in direction of red arrow. 3 Disassembly PWB like the picture DISPENSER ASSEMBLY 1 The plate assembly(Top) are disassembled. 2 Pull the drawer to arrow direction. 3 Two screws are unscrewed.
  • Page 66 DISPENSER ASSEMBLY Unscrew two screw of the Dispenser Unscrew two screw of the Valve Assembly Pull out the Housing Disassemble the Hose Disassemble the Housing with Unscrewing Screw Unscrew two Screw and two Housing and then can remove the Motor Pull out the Inlet Bellows Pull out two Hoses Remove 3 Ribs and then Pull out the Dispenser...
  • Page 67 INLET VALVE 1 Disconnect the wiring connector. 2 Remove the valve by two screws of the valve holder. When reconnecting the connector Valve ①(Main Wash) Black / Grey Valve ②(Steam Valve) Black / White Rating : 12V Resistant : 22~35 DOOR 1 Open the door completely.
  • Page 68 CABIN ET 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 are unscrewed. Push the hook( ) below. 3 Unscrew the screws from the lower cover.
  • Page 69 4 Lift and separate the cabinet cove r. NOTE: When assembling the CABINET COVER, connect the Door S/W connecto r. SWITCH ASS Y , DOOR LOCK 1 Two screws are unscrewed and disassembly cabinet cove r. 2 The Door Lock S/W is disconnected form the wiring connector and the strap.
  • Page 70 ROTOR ASSEMBLY, STATOR ASSEMBLY, FRICTION DAMPER 1 Remove the back cover. 2 After loosening the bolt, Roto r, pull out the rotor. 1 Remove the 3 bolts from the stator. 2 Disconnect the 2 connectors. Motor Stator U V W V ~ U (8~11 ) U ~ W (8~11 ) W ~ V (8~11 )
  • Page 71 PUMP 1 Disassembly Top Plate, Control Panel, Drawer Panel Assembly, Cabinet Cover Assembly, Lower Cover Assembly 4 Remove pump outlet hose. Bellows 5 Remove tub pump bellows. 6 Remove cap(Remaining Hose). Pump 7 Disconnect the wiring. Hose 8 Three screws are unscrewed from the cabinet. 9 Remove the pump to arrow direction.
  • Page 72 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. 72 72...
  • Page 73 How to disassemble Vibration sensor (Only for Vivace 550 model) Open the top plate by removing 2ea screws . Tub Cover Coating Guid e Cut cable ties from coating guide and tub cover. Remove the vibration sensor housing from the PCB. Remove the vibration sensor from tub cover.

  • Page 74: Exploded View And Part List

    EXPLODED VIEW AND PART LIST THE PART LIST OF CABINET ASSEMBL A154 A159 A140 A155 A110 A103 A102 A104 A152 A106 A151 A141 A101 A150 A395 A130 A134 A430 A100 A440 A410 A135 A300 A310 A133 A200 A220 A485 A201 COLD (BLUE) A276 A450...
  • Page 75 THE EXPLODED VIEW OF CONTROLANEL & DISPENSER ASSEMBLY F400 K517 F160 K518 F300 F460 F462 F301 F350 F351 F433 F352 F310 F432 F230 F240 F430 F220 F226 F231 F441 F120 F215 F110 F486 F210...
  • Page 76 THE EXPLODED VIEW OF DRUM & TUB ASSEMBLY K350 K360 K143 K123 F140 K411 F470 K121 K122 F321 K410 K125 K111 K110 K444 K141 K140 K105 K115 K612 K130 K135 K150 K510 K320 K530 K611 K610 K151 K131 K572 F467 F468 K344 K571...
  • Page 77 P/No.: MFL71848747...

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