LG WT6001HVA Service Manual ▷ View online
FOR LG TECHNICIAN
41
UNBALANCE ERROR
Yes
Is UE displayed?
Put laundry evenly
In the drum
assembly
No
Does the laundry lean
toward one side, not evenly
put in the drum assembly?
Is the washing machine
installed on an unlevel or
uneven floor?
Yes
Yes
Does the inlet valve work
when the power is not
applied?
Replace the
inlet valve assembly
No
Adjust the height of
washing machine
so it is level.
Yes
If the inlet valve
work continuously
when the power is
applied, Replace
the main PCB
assembly.
OVER FLOW ERROR
Yes
Is FE displayed?
Check the air
chamber
and the tube
(clogged).
Yes
When you enter the service
mode, is the water level
frequency over 21.0 kHz?
No
FOR LG TECHNICIAN
PRESSURE SENSOR ERROR
42
Yes
Is PE displayed?
Reconnect or
repair the
connector
No
Is the connector connected
to pressure sensor
disconnected or
disassembled?
Yes
Replace the
pressure switch
No
Is the resistance of the
pressure sensor out of range?
(pin 1~ pin 3)
(21~23 Ω±10%)
Yes
No
Are the air chamber and
the tube clogged?
Yes
Fix the air
chamber and
remove the foreign
material
Replace the main PCB
assembly
FOR LG TECHNICIAN
4-8. OTHER TROUBLESHOOTING
43
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 PCB assembly, reinsert the connectors correctly.
NO POWER
Replace the
display PCB
assembly.
Is three pin wire of display
PCB broken?
Yes
Replace the
main PCB
assembly.
No
Is LED on while the power is
on?
Yes
Check the fuse or
reset the circuit
breaker
Yes
Is the supplied voltage
120V AC?(+10%, -15%)
No
Reconnect or
repair the
connector
Yes
Is the connector connected
to PCB/Noise filter
disconnected or
disassembled?
No
Alternate with
explanation
Yes
Is the current rating of multi-
outlet power strip enough?
No
Display PCB
Connecting connector
Main PCB~ Display PCB
CAUTION
FOR LG TECHNICIAN
44
Replace the
display PCB
assembly.
Is the display PCB broken?
(check the buzzer sound and
LED light
while touch the LCD )
Yes
Yes
No
Is the connector connected to
main PCB / display PCB
disconnected or
disassembled?
Reconnect or
repair the
connector
Connecting connector
Main PCB~ Display PCB
BUTTON DOESN’T WORK
Yes
No
Is the touch connector
connected to LCD PCB
disconnected?
Connect the
connector
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