LG WM-388CT Service Manual ▷ View online
Is the res is tance of the
T hermis tor
out of range
2.5~180K
s at 105~0°C ?
Dis as s emble the
C abinet c over
and
C ondens ing
B ellows
.
Is there any foreign object in
C ondens ing B ellows
?
Dis as s emble the
Dry F an A s s y
and
Dry Duc t Upper
,
and clean foreign object in
Duc t and F an
.
Is the
C onnec tor
connected correctly to
the
Main P C B
and the
Dry Heater
or
F an Motor
?
Or is the
Harnes s
alright?
R econnect or repair the
C onnec tor
.
Or replace the
Harnes s
.
R eplace the
T hermis tor
.
C lean the
B ellows
.
Y E S
NO
C heck for
Dry Heater
trouble.
P age 24
C heck for
Dry F an Motor
trouble.
P age 25
Dry Heater Error (dHE)
Y E S
Y E S
NO
NO
Y E S
Y E S
29
Is
Thermostat
closed ?
After power off, is the resistance of
Dry Heater
out of
range 33~37
7?
Replace the
Dry Heater
.
Dry Heater Trouble
YES
YES
NO
Replace the
Thermostat
.
NO
Replace the
PWB assembly (main)
.
NO
When checking voltage between
connectors(1,2)
on drying, is the voltage AC 220-240V as the figure ?
1
2
30
Are the res is tance s ame between
terminal
points ?
V ~U / U~W / W ~V : 2~5
Is the
C onnec tor
connected correctly to
the
Main P C B
and the
Dry Heater
or
F an Motor
?
Or is the
Harnes s
alright?
R econnect or repair the
C onnec tor
.
Or replace the
Harnes s
.
R eplace the
Dry F an Motor
.
W hen checking voltage between
c onnec tors (1,2)
on drying, is the voltage DC 20~30V as the figure ?
Dry Fan Motor Trouble
Y E S
Y E S
NO
NO
R eplace the
P W B as s embly
(main)
.
NO
V U W
1
2
31
No Power
Is the P ower P lug connected
firmly to the power outlet?
And is the s upply voltage
220~240V AC ?
Is
R ed L E D ON
while power s upplied ?
Is Multi-plug s ocket us ed ?
NO
NO
NO
Y E S
Y E S
Y E S
NO
Is the connectors connected
C orrectly to the Dis play
P C B ?
Is the
C onnec tor
connected correctly to
the
Main P C B
and the
Nois e F ilter
?
Or is the
Harnes s
alright ?
Nois e F ilter
Main P C B
P C B
R econnect
P ower P lug
firmly.
C heck the fus e or
res et the circuit breaker.
Don’t us e
Multi-plug
s ocket.
Us e
S ingle P lug
s ocket for
was hing machine.
Y E S
Y E S
R econnect or repair the
C onnec tor
.
Or replace the
Harnes s
.
C heck connectors otherwis e.
R eplace
Dis play P C B
.
C heck and replace
Main P C B
.
8. T R OUB LE S HOOT ING W IT HOUT E R R OR C ODE S
32
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