LG WT-80PV Service Manual ▷ View online
6) Display “LE” and out of work
Check
Check results
Possible reasons
Solution measures
1．Check connectors
Poor connection
Connection fault
Connect
again
or
implement
troubleshooting caused by
poor connection.
2．Check rotor magnet
Cracked
Replace rotor
3．Measure if resistance
between two legs of stator
connector is between
5—15Ω.
Yes
No
None
Stator fault
Replace stator
Normal
Abnormal
None
Hall element fault
4．Check Hall element
Replace Hall element
5．It must be PC board
fault if fault is not
mentioned above.
Replace PC board
7) Power failure
Check
Check results
Possible reasons
Solution measures
Main voltage
Input voltage is abnormal
caused by interference.
Input voltage fault
Explanation
( high-frequency device
around washer)
Automatic power relay or
PC board
1． Check if power is
off automatically when
unplugging power cord
during power is on.
2． There must be PC
board fault if power is off
immediately when power
is on and power switch is
under good condition.
Power is cut off
immediately.
Power switch fault
Replace PC board
33
8) Undrained
Check
Check results
Possible reasons
Solution measures
Drain motor
Yes
Clogged with foreign
objects
1 ． Check if there is
working sound of drain
motor.
Unplug drain valve and
remove foreign objects
2．Measure resistance if
there is no working
sound
∞
Drain motor coil is cut off
Replace drain motor
Connector fault
Connector fault
Repair connector
3 ． Check connectors if
there is no working sound
and resistance is normal.
No Connector fault
PC board fault
Replace PC board
Drain hose
Winded
Installation problem
Install it again to avoid
winding
1．Check if the space is
too small to place
drain hose or hose is
winded
2．Check if drain hose is
folded or clogged
with foreign objects.
Clogged
Drain hose is clogged
Remove foreign objects or
install it again to avoid
winding.
9) Drain out of drainage time
Check
Check results
Possible reasons
Solution measures
Clogged with foreign
objects
Remove foreign objects
Drain valve shell
1．Check whether rubber
bellows are deformed
or there are foreign
objects in drain valve
components if keeping
draining.
Deformation of rubber
bellows
Deformation of rubber
bellows
Replace rubber bellows
PC board
1．Check if drain motor or
drain pump runs
immediately when
power is on.
Yes
PC board fault
Replace PC board
Drain hose
1．Check if drain hose is
properly installed. The
discharge height should
be approximately
0.9-1.2m from the floor.
less than suggested height
Incorrect installation
Place the outlet of drain
hose 0.9-1.2m from the
floor.
34
10) Drainage fault during drainage time
Check
Check results
Possible reasons
Solution measures
<26。3KHz
Pressure sensor fault
Replace pressure fault
Pressure sensor
1 ． Measure pressure
sensor frequency under
anhydrous condition.
26。3—27．1KHz
PC board fault
Replace PC board
11) SPIN while lid is open
Check
Check results
Possible reasons
Solution measures
Yes
Short-circuit
Remove magnetic objects
PC board
1． Are there magnetic
objects on PC board? No
reed switch is off
Replace PC board
12) Vibration, noise and unbalance during SPIN
Check
Check results
Possible reasons
Solution measures
Installation condition
1．Check if the washer is on a
flat surface.
Uneven
Poor installation
(Check clearance between outer
tub and body, washer and wall.
Make sure that clearance to the
right side and left side is the
same, clearance to the back is
1.5-2 times than that to the
front.
Install the washer on a flat
and firm surface
2．Check if clothes in the tub is
higher than the top row which
cause vibration and noise.
Yes Non-standard
clothing
placing
Explanation
3 ． Check if wire wheel rotates
during SPIN (remove front lid and
pin for a cycle)
Wire wheel rotates
first
Clutch
flaw
Replace clutch reed or
clutch
Suspender
Yes
Suspender flaw
Replace four suspenders
(check the position during
installing)
1．Check if tub is in touch with
the roof under no load
“SPIN”.
*it is important to check type and source of noise, which is useful to gain maintenance experience.
35
13.
Disassembly diagrams and Parts list
Roof module
Body module
Inner tub
module
36
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