Daewoo DWF-178M, Service Manual, Page: 27 / 42

TROUBLE SHOOTING GUIDE 26
NO
NO
NO
PROBLEM
THE INDICATOR
LAMPS(L.E.D)
DO NOT LIGHT
UP WHEN THE
POWER
BUTTON IS
PRESSED.
PROGRESS
LAMPS(LED)
DO NOT LIGHT
UP.
MOTOR
ROTATES WHEN
START/HOLD
BUTTON IS NOT
PRESSED.
ABNORMAL
NOISE DURING
WASH
PROCESS.
CHECK POINT
Is the plug connected
to electric outlet?
Is the condition of
power button good?
Is the connector of the
P.C.B. ASS’Y
connected properly?
Is input voltage of the
transformer normal?
Do you press
START/HOLD button?
Does the pressure switch
operate normally?
Check the output voltage
of P.C.B ASS’Y.
Is the strange noise
generated when the
pulsator rotates in TEST
MODE of P.C.B ASS’Y?
Is the V-belt worn out?
CAUSE SOLUTION
Connect the plug.
Change P.C.B ASS’Y.
Change Fuse.
Connect the connector
properly.
Change P.C.B ASS’Y.
Change P.C.B ASS’Y.
Press START/HOLD
button.
Replace P.C.B ASS’Y.
Change the pressure
switch.
Change P.C.B ASS’Y.
Remove the foreign
matter.
Change the V-belt.
Power button is
defective.
Improper connection of
the connector.
Transformer is defective.
P.C.B. ASS’Y is
defective.
P.C.B ASS’Y is
defective.
Pressure switch is
defective.
P.C.B ASS’Y is
defective.
There is foreign matter
between pulsator and
tub.
V-belt is defective.
NO
YES
YES
YES
YES
YES
NO
NO
YES
YES
Abnormal
YES
YES
NO
NO
Is Fuse opended?
CONCERNING OPERATION