LG WT-D102WG Service Manual ▷ View online
4 5
4-9-1 TROUBLESHOOTING WITH ERROR
Is displayed?
yG
Gyv{vy
Gyv{vy
Check the connectors below.
Is the connector disconnected
or disassembled?
(motor hall sensor connector,
motor drive connector)
- part of main PWB
assembly (YL3,NA1)
pGGGf
pGGG
GGGG\GX\Gȳf
O|T}SG}T~SG~T}
GGGG\GX\Gȳf
O|T}SG}T~SG~T}
a|dXSG}dYSG~dZP
T hGGGGsZ
SGGG
GGG
GUGOyGZwSGP
GGG
GUGOyGZwSGP
pGGGGG
GfG
GfG
OyGG`TZG
zG VoG
P
P
jGGpwtGGG
yG
GoG
GoG
yGG
thpuGw~iG
hzzltis
thpuGw~iG
hzzltis
LOCKED MOTOR ERROR
Yes
Yes
Hall sensor
Yes
No
Motor
Yes
t
No
Yes
yG
Gz{h{vy
Gz{h{vy
Yes
No
No
T GG
Motor Drive
T GG
Reconnect
the connector
(connector /
wire / motor )
the connector
(connector /
wire / motor )
Motor Drive
Hall Sensor
4 6
4-9-1 TROUBLESHOOTING WITH ERROR
Is displayed?
No
Yes
Yes
Yes
UNBALANCE ERROR
When you press both Water
level button and Spin button
simultaneously, is the water
level frequency over
21.3kHz?
level button and Spin button
simultaneously, is the water
level frequency over
21.3kHz?
(Refer to 7-4)
Check the AIR
CHAMBER
and the tube
(clogged).
CHAMBER
and the tube
(clogged).
Replace the
INLET VALVE ASSEMBLY
INLET VALVE ASSEMBLY
Is displayed?
Yes
No
Yes
No
Yes
OVER FLOW ERROR
Does the laundry lean
toward one side, not evenly
put in the DRUM assembly?
toward one side, not evenly
put in the DRUM assembly?
Put laundry
evenly
In the DRUM
assembly
evenly
In the DRUM
assembly
Is the washing machine
installed at an angle?
installed at an angle?
Adjust the
height of
washing
machine
to be kept
horizontally
height of
washing
machine
to be kept
horizontally
[Note] Environmental check list
1) Removal of transportation-based fixed bolt
2) Confirmation on the material to see if it is capable
1) Removal of transportation-based fixed bolt
2) Confirmation on the material to see if it is capable
of handling two different types of blanket materials
Does the inlet valve work
when the power is not
applied?
when the power is not
applied?
If the inlet
valve work
continuously
when the power
is applied,
Replace the
MAIN PWB
ASSEMBLY
valve work
continuously
when the power
is applied,
Replace the
MAIN PWB
ASSEMBLY
4 7
4-9-1 TROUBLESHOOTING WITH ERROR
Is the resistance of the
pressure sensor out of
range?
(pin 1~ pin 3)
(21~23
pressure sensor out of
range?
(pin 1~ pin 3)
(21~23
˟ ·10%)
Replace the
pressure
switch
pressure
switch
Is the AIR CHAMBER and the
tube clogged?
tube clogged?
Fix the air
chamber
and remove
the foreign
material
chamber
and remove
the foreign
material
Is displayed?
No
Yes
Yes
No
Yes
No
Yes
Replace the MAIN PWB
assembly
assembly
PRESSURE SENSOR ERROR
Is the connector connected
to pressure sensor
disconnected or
disassembled?
to pressure sensor
disconnected or
disassembled?
Reconnect or
repair
the connector
repair
the connector
4 8
4-9-1 TROUBLESHOOTING WITH ERROR
Is
displayed?
Yes
CLUTCH MOTOR ERROR
Is the connector connected to
Sub PWB assembly
disconnected or
disassembled? (NA1)
Sub PWB assembly
disconnected or
disassembled? (NA1)
Reconnect or
repair
the connector
repair
the connector
Yes
No
- Part of wire
Motor Drive
Hall Sensor
- Part of Clutch
Turn on WM and operate
check clutch motor Is it spin
check clutch motor Is it spin
or not?
Replace
Clutch motor
or sub PCB
or PCB
harness
Clutch motor
or sub PCB
or PCB
harness
No
Is the connector connected
clutch to Motor disconnected
or disassembled?
clutch to Motor disconnected
or disassembled?
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