Concerning Washing - Daewoo DWF-770 Service Manual

PROBLEM CHECK POINT
Does the water supply
continue while the power
is turned off?
Does the water supply start
as soon as you press the
power switch?
Operate the washer after
WATER SUP-
setting the water level to
PLY IS NOT
"HIGH"
STOPPED.
Does the water supply
continue after the water
reaches to the "HIGH"
level?
Is the air tube of water
level switch kinked or
deformed?
C o n c e r n i n g W a s h i n g
PROBLEM CHECK POINT
Does the motor operate after fin-
ishing water supply?
NO
Does pulsator rotate in
only one direction?
Does the motor make
THE PUL-
operating sound?
SATOR DOES
NOT ROTATE
YES
EVEN IF THE
Is the motor coil dis-
WATER IS
connected?
SUPPLED.
Is the connection condi-
tion of capacitor termi-
nal good?
Is the V-belt worn out?
NO
The water inlet valve is
YES
defective.
NO
YES
The triac of P.C.B is
defective.
NO
YES
YES
Air tube is defective.
Pressure switch is defec-
NO
tive.
YES
YES
The triac of P.C.B is
defective.
NO
YES
Motor is defective.
NO
Improper connection
YES
YES
V-belt is defective.
CAUSE
Change the water inlet
valve.
Change the P.C.B ASS'Y.
NO
Normal operation.
Change the air tube.
Change the pressure
switch.
CAUSE
Change the P.C.B
ASS'Y.
NO
Connect the terminal
properly.
SOLUTION
SOLUTION
Normal
Change the motor.
Change the V-belt.
Change the motor.
TROUBLE SHOOTING 29