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LG Wd 10490n Service Manual

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    							20
    YES YES YES
    NO NO
    NO
    NO
    NO
    YES YES
    YES
    YES
    Wiring diagram
    option (HOT)
    MAXmax
    ABNORMAL SOUND SOFTENER DOES NOT FLOW IN
    Fix the bolt tightly.
    Replace the V-belt
    (4400FR3116B)
    Replace the motor. Refer to
    NO WATER SUPPLY
    Check the wiring on the 
    dispenser.
    Put it in the correct
    compartment.
    Clean the cap and
    drawer.
    Is the pulley bolt loosened?
    Is the belt worn?
    Is there friction noise from the motor? Is water supplied?
    Are receptacles correctly connected to the
    terminals of inlet valve?
    Is softener put in the correct compartment of
    drawer?
    Is the softner cap clogged?
      
    						
    							21
    NO
    NO YES
    YES
    YES NO
    NO
    NO
    NOYES
    YES
    NO
    PWB ASSEMBLY
    PWB ASSEMBLY
    12
    Replace the sensor 
    (pressure).
    Replace the PWB
    Assembly.
    Repair drain hose
    Remove foreign
    material.
    Reconnect or repair the
    connector
    Replace the pump
    assembly
    Replace the PWB  Checking voltage between two pins as press
    the power button is the voltage 220-240V~?
    Is the drain hose twisted or frozen?
    Is the impeller of the drain pump clogged?
    Is the connector disconnected,
    disassembled?
    Is the coil of drain pump cut-off?
    (resistance of coil is 90~160Ω)
    When checking voltage between connectors
    (
    , )on spinning, is the voltage 
    220 - 240V~  as the figure?
    When pressing [Spin] and [Temp.] at the
    same time after draining, is  the water level
    frequency 252 or more?  
    When pressing  [Spin]
    [Temp.] buttons at the
    same time while wash, is the water level
    frequency between 230 - 245V~?
    HEATING WITHOUT WATER
    DRAIN MALFUNCTIONING
      
    						
    							22
    AC 220-240V
    (1)
    1
    6
    Replace the thermistor
    Push the thermistor
    tightly to the rubber. When disconnecting the connector (1) on the 
    PWB assembly (Main) is the resistance of the 
    Natural connectors [H
    						
    							23
    NO
    YES
    YES YES
    NO
    NO
    NO
    YES
    1
    105
    12345678910
    35214
    SPIN TROUBLE
    Check the sensor
    (Pressure) or hose 
    (Sensor). 
    If the problem is on the
    sensor or the hose, replace
    the sensor or the hose.
    Normal
    Reconnect or repair it.
    Replace the motor
    assembly.
    Press [Power] button with [Temp] and [Option]
    buttons pressed after power off. Press [Start/Pause]
    button 2 times. Does the drum rotate at low spin
    speed?
    Is it disconnected or badly contacted?
    [White : 2 pin (
    ), Black : 2 pin (), White : 3 pin (), 
    Blue : 4 pin (
    ), White : 4 pin ()]
    Check the motor connector, Is the resistance between
    the terminal in figure the same as below?
    Resistance between terminals
    H
    						
    							24
    Be sure to unplug the machine out of the outlet before disassembling and repairing the parts. 
    9. DISASSEMBLY INSTRUCTIONS
    Unscrew 2 screws on the back of the top plate.
    Pull the top plate backward and upward as shown.
    Disconnect the PWB Assembly connector from Main
    lead wire Assembly.
    Pull out the drawer and unscrew 2 screws.
    Push upper hooks down on the top and pull the control
    panel.
    Disconnect the PWB assembly from the control panel
    by unscrewing 5 screws.
    Hook
    PLATE ASSEMBLY (TOP)
    CONTROL PANEL
     
    						
    							25
    Disassemble the top plate assembly.
    Pull out the drawer to arrow direction.
    Unscrew 2 screws.
    Disassemble hose and its clamps.
    Disassemble ventilation bellows and water inlet
    bellows on the tub.Option
    DISPENSOR ASSEMBLY
    DRAWER
    DISPENSER ASSEMBLY  
      
    						
    							26
    Disconnect the wiring receptacle.
    Unscrew 2 screws from the back.
    When reconnecting the connector
    Open the lower cover cap by using coin and pull out  the
    lower cover to the arrow direction after a screw is
    unscrewed.
    Open the door completely.
    Remove the two screws from the hinge.
    When removing the door assembly, it is necessary to
    hold the bracket that is inner of the cabinet cover.
    12
    3
    INLET VALVE
    LOWER COVER
    VALVE #1 (MAIN) White/Black-Black
    VALVE #2 (PRE) Black - Gray
    VALVE #3 (HOT) Blue/White - Black
    DOOR
      
    						
    							27
    Take apart the cabinet gasket clamp.
    Unscrew 2 screws from the cabinet cover.
    Open the lower cover cap and unscrew 1 screw inside.
    Take apart the lower cover.
    Disassemble the cantrol panel. (refer to the page 25)
    Unscrew all the screws on the upper and lower sides
    of the cabinet cover.
    Take apart the tub gasket clamp.
    Make sure that the drain hole of the gasket is put
    beneath when reassembling the gasket.
    Refer to the arrow mark on the tub cover.
    GASKET ASSEMBLY 
      
    						
    							28
    Remove the back cover.
    Take off the belt turning the pulley.
    Unscrew the bolt to pull out the pulley.
    Unscrew 2 screws from the bracket.
    Push the motor in the arrow direction for
    disassembling.
    When reassembling the motor, make sure that motor
    mounting bushings are not taken off from the bracket.
    Pull out the hinge, pressing its snap.
    Do not use the pulled - out hinge again. It may be
    taken off during operation.Hinge,
    DamperDamper
    1
    2
    3
    PULLEY, MOTOR, DAMPER
    (PULLEY)
    (MOTOR)
    (DAMPER)
    Open the lower cover cap (H
    						
    							29
    Pump Outlet Hose
    Tub Pump 
    Bellows
    Remove pump outlet hose.
    Remove tub pump bellows.
    Remove cap (Remaining Hose.)
    Disconnect the wiring.
    Unscrew 2 screws. 
    Remove the pump.
    Loosen the M6 heater nut to pull out the heater.
    When mounting the heater, be sure to insert the heater
    into the heater clip on the bottom of the tub.
    Pull it out by holding the thermistor bracket.
    If it is pulled by the wire, it may be broken.
    When mounting the thermistor again, make sure that it
    is got back tight to the bushing.
    PUMP 
    HEATER 
    THERMISTOR 
    CAUTION
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