Read LG WFW1532EK Service Manual online
41
4-9. HOW TO DIAGNOSE AND REPAIR BY SYMPTOM
1) Washer is not energized.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
Household Power supply
1. Check whether connection between the
plug and the electrical is poor
2. Measure voltage of the electrical.
Wiring of the Washer
1. Measure resistance between both ends
of the power supply cord with both the
plug pins short-circuited.
plug pins short-circuited.
2. Check whether every connector in the
bundle of connectors has a good
connection.
connection.
3. Check resistance of every wire to find
out a open wire.
Electrical component
1. Check resistance with power relay
switch turned on
2. Check the secondary voltage of the
transfomer.
3. Measure resistance to check whether
the T.P of the motor is blown out.
4. Check whether the fuse is open.
Controller
If there are no defects in the above,
it should be defect of the controller.
it should be defect of the controller.
If supply voltage is 120% higher than
rating the varistar in the controller may
be broken. Check supply voltage.
rating the varistar in the controller may
be broken. Check supply voltage.
Poor
Around rating
0 V
Less than 1
∞
Male & female
connectors separated
connectors separated
∞
Less than 0.5
More than 1.0
10~14 V
0 V
∞ Ω
and motor is hot
Open
Over 120% voltage
than rating check
than rating check
Change the controller if all
the electrical parts have no
defects.
the electrical parts have no
defects.
Defect of the electrical
No defect
Defect of household
power supply
power supply
No defect
Open circult of the power
supply cord
supply cord
Poor connection
Wire is opened.
No defect
Poor contact
No defect
Coil is open
T.P blown out.
Defect of the fuse
Change the electrical.
Call for power supply
company
company
Change the power supply
cord.
cord.
Remove the cause to give
strain and reconnect
them.
strain and reconnect
them.
Change the lead wire
Change the AUTO OFF
Switch
Switch
Change the
transfomerformer.
Remove cause to
overload the motor
Change the fuse.
CAUTION
Check the fuse rating
AC100~127V:125V 12A
AC220~240V:250V 6A
CAUTION
Check the fuse rating
AC100~127V:125V 12A
AC220~240V:250V 6A
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