5. Troubleshooting
Symptom Itemstocheck Resolution
Washing machine
is not turned on.
Check the power supply
•
Check the power supply voltage
•
Check the power loss or circuit
breaker
Check whether
the fuse is blown
•
Replace the fuse and
check the operation
in the test mode to
see whether the fuse
is blown again
•
Ifthefuseisblownduringwater
lling,measuretheresistanceof
water supply valve and replace it if
it is shorted.
•
Ifthefuseisblownduringwashing,
measure the resistance of the motor
and replace it if it is shorted.
Check the connection status of the connector
and corrosion of the cables.
•
Replace the connector and harness
Checktheinput/outvoltageofregulatorICon
thePCBassembly.(Input:12V,output:6V)
•
Replacetheregulator.Ifitdoesnot
solve the problem, replace the PCB
assembly.
Washing does
not work.
Check motor
operating noise
•
Check the
connection status
of the connector,
and short failure of
motor windings.
•
Replace the connector and harness.
•
Replace the motor in case of short
failure.
•
Replace the PCB assembly if there
is no short failure in the motor
windings.
Spinning does
not work
Check the voltage between the terminals
of the drain synchronous motor.
•
Replace the motor if it fails.
•
Replace the PCB assembly if
synchronous motor is normal.
Water is not
lledup.
Check whether the faucet is closed.
•
Turn on the faucet.
Check for existence of foreign substances in
the water supply valve.
•
Cleanthelterwithbrush.
Check whether the connection between the
hose and the water supply valve is correct
•
Correct the connection between the
water supply hose and cold water
valve.
•
Check the connection of the cold
water hose at the nozzle.
Check the sound of water supply valve
Check the contact status of the connector
terminals
•
Replace the water supply valve if
thewatersupplystillfails,andx
the failure conditions to prevent the
recurrence of the same failure.
•
Replace the PCB assembly if the
contacts are normal and problem is
not solved with the above methods.
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