34 _ Troubleshooting
Error Type Error Mode Causes Corrective Actions Description of Photo
Switch Error
(Main Relay
Error)
bE1
bE2
bE3
• The Power button is continually
pressed.
• A button other than the Power
button is continually pressed.
• Main PCB relay fault
• Check whether either the Power switch or a
tact switch is continually pressed.
• Check whether the service PBA holding
screws are fastened too much. If they are
fastened too much, loosen them a little.
• If the main PBA switching IC on/off error has
occurred, replace the main PBA.
• The “bE3” error occurs if the main relay
connections are incorrect. Check the
connections. If there is no error in the
connections, replace the main PBA.
GAP
Check the contact between the
control panel buttons and their
corresponding tact switch.
- There must be a gap
between a control panel
button and its corresponding
micro switch.
Otherwise, an error
occurs after approx. 30
seconds has passed.
Cooling Error CE
• Washing temperature sensor fault
• Description of PL hazard
prevention
• This error occurs if the water temperature
is more than 50 ˚C in draining. Check the
temperature.
• If the water temperature is normal, this error
is due to a temperature sensor fault. Replace
the washing heater.
When replacing the washing heater, take care
to prevent water leakage.
Check the resistance on the
Heater. (For faulty features)
Check the voltages on the red
/ blue terminals of the Heater
while washing.
Check 25.1275 ~ 27.7725
(at 5
o
C) 11.4518~12.3938k
(at 25
o
C)
on both terminals
and the voltage of the
Heater.
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