Daewoo KUF-150Q, Service Manual

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42
4. Troubleshooting
ELECTRIC CIRCUIT
• Check the voltage used
• Check blackout and a circuit
breaker
• If the fuse is disconnected during
water supply, replace the water-
supply valve after measuring the
resistance of the valve and a short
is confirmed
• If the fuse is disconnected during
washing, replace the motor after
measuring the resistance of the
motor and a short is confirmed
• Replace the connector and harness
• Replace the PCB or parts if the
error exists after checking the
regulator.
• TRIAC error on the PCB. Replace
the PCB.
• Replace the connector and harness
• Replace the motor if a motor wire
is disconnected
• Replace the PCB if a motor wire is
normal.
• Correct the contact of the capacitor
terminal.
• Replace the belt
P Prroobblleem mss M Maatttteerrss ttoo C Ch heecckk T Trroouubblleessh hoooottiin ng g
Check the voltage
Check the
fuse
Check the connector and corrosion of
the wiring.
Check the voltage of the regulator I.C.
of PCB (Input: 12V, Output: 6V)
After
draining
Check
electrical
noise of
the motor
Check the capacitor terminal
Check abrasion of the belt
Replace the fuse
and check the
operation in the
test mode to see if
the same error
occurs.
No power
No washing
→
the wing rotates
only in the one
direction or makes
excessive noises
when it rotates in
the reverse
direction.
→
• Check the
connector
• Check
disconnection of
wires of the
motor
→