LG Wd 10164n Service Manual

							20
NO
YES
NO
NO
YESNO
YES
YES
NO
NO
YES
YES
YESNO
NO
NO
YES
Wiring diagram
option (HOT)
option (HOT)
Is the water supply shut-off?
Is the tap opened?
When you press both Biobutton and Time Delay
button simultaneously, is the water level frequency
below 240?
Is the inlet valve filter clogged with impurity?
Is resistance of the inlet valve connector 
between the 2 to 8
k?
Check the voltage between each terminals of inlet
Valve is 220 - 240V~.
(Refer to 7-2 TEST MODE)
Is water supplied?
Are replaceptacles correctly connected to the
terminals of inlet valve?
Is detergent put in the correct compartment of
the drawer?
Is the detergent caked or hardened?Open the tap.
Check the chamber (Air)
and the tube clogged 
with impurity. 
Clean the filter.
Replace the inlet valve.
Replace PWB assembly
(Main)
Refer to solution
NO INLET
Check the wiring on the
dispenser.
Put the detergent in the
correct position 
PRE+MAIN
MAIN WASH
: Detergent 
Clean the drawer.
NO WATER SUPPLY
DETERGENT DOES NOT FLOW IN
MAIN
WASHSOFTENER
PRE -
WASH
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YES YES YES
NO NO
NO
NO
NO
YES YES
YES
YES
Wiring diagram
option (HOT)
ABNORMAL SOUND SOFTENER DOES NOT FLOW IN
Fix the bolt tightly.
Replace the V-belt
(4400FR3116A)
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?
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AC 220-240V
NO
NO YES
YES
YES NO
NO
NO
NOYES
YES
NO
2
1
PWB ASSEMBLY (MAIN)
PWB ASSEMBLY (MAIN)
Replace the sensor 
(pressure)
Replace the PWB
assembly (Main)
Repair drain hose
Remove foreign
material.
Reconnect or repair the
connector
Replace the pump
assembly
Replace the PWB
assembly (Main) 
When pressing [Bio] and [Time Delay] at the
same time after draining, is  the water level
frequency 252 or more?  
When pressing  [Bio], [Time Delay] buttons at
the same time while wash, is the water level
frequency between 
220 - 240?
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 90~160
)
When checking voltage between connectors
(
, )on spinning, is the voltage 220 - 240V~ 
as the figure?
HEATING WITHOUT WATER
DRAIN MALFUNCTIONING
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NO
YES
YES
WASH HEATER TROUBLE
When checking the voltage between 
connector the PWB assembly (Main)during 
whites washing ,Is the voltage 
220 - 240V    ?Replace the PWB 
assembly (Main)
YESNO
After power off and the heater terminal is
disconnected, is the resistance 10 to 30   ?Replace the heater 
assembly
NO
After power off,is the resistance of wire
(BROWN-BLUE) connectors between
10    to 30   ?
Normal
NOYES
BROWN
BLUE
2
3
123
  ~    
220 - 240V~
(1)
PWB ASSEMBLY (MAIN)
Replace the thermistor
(6322FR2046F)
Push the thermistor
tightly to the rubber. When disconnect the connector (1) on the 
PWB assembly (Main) is the resistance of the 
Natural connectors ( Violet),
(Orange)between  2.5kto 180k
(105~0)?
When checking thermistor on the tub, 
is the thermistor loosened above 2mm from 
the rubber?
HEATING CONTINUOUSLY ABOVE 
THE SETTING WATER TEMPERATURE
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3
@
1@2
NO
YES
YES YES
NO
NO
NO
YES
(1)
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
Correct the connector.
Replace the motor
assembly.
(4681ER1003A)
Check on the spinning, is the frequency of the
water level 248 or more. The frequency can be 
checked by pressing the Bioand Time Delaybuttons
at the same time on the program.
When pressing Pre Wash,Crease Care, and
POWER buttons at the same time after power off,
press the  START/PAUSE button 2 times, is the drum
low speed spin?
Is it disconnected, or disassembled?
Red:3pin ()
Check the motor connector. Is the resistance of
the terminal same as the figure?
MOTOR TERMINAL
Resistance of terminal: 
About 6.5
Replace the PWB assembly (Main)
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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 (Main & Display) from
the control panel by pushing 4 hooks down.
Hook
CONTROL PANEL
PLATE ASSEMBLY (TOP)
PANEL ASSEMBLY
(CONTROL)
PWB ASSEMBLY
(DISPLAY)MAIN
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Disassemble the top plate assembly.
Pull out the drawer to arrow direction.
Unscrew 2 screws.
The hose clamps and the hose are disassembled.
The  ventilation  bellows  and  the  water  inlet  bellows  are
disassembled on the tub.
DISPENSER ASSEMBLY  
DISPENSOR ASSEMBLY DRAWER
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Disconnect the wiring receptacle.
Unscrew 2 screws from the back.
When reconnecting the connector
Open  the  lower  cover  plate  by  using  coin  and  pull  out
the  lower  cover  in  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) Whited/Black-Black
VALVE #2 (PRE) White/Red - Black
VALVE #3 (HOT) Blue/White - Black
DOOR
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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.
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 
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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 () by
using a finger Turn the drain plug
(
) to pull out the hose.Unplug the drain plug (
) , then
the water flows out, 
At this time use a vessel 
to prevent water flowing on the
floor. If the water does not flow any
more,turn the pump filter (
)
open to the left.Take out any foreign material
from the pump filter ( 
). After
cleaning, turn the pump filter(
)
clockwise and insert the
drain plug ( 
)to the original
place. close the lower cover cap.
Clean the drain pump filter
132
3
2
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