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34 English
Troubleshooting
Troubleshooting
Code Description Action
C446
BLDC Motor or
Inverter PBA is not
working
Press the POWER button to restart the
product.
If the problem persists, disconnect the
power plug for more than 30 seconds.
Allow the product to cool and restart it.
If it is not resolved, please contact a
Samsung Electronics Service Center.
C447
C455
C478
C486
C489
C493
C496
C499
C654 Electric Damper is not
working
Reconnect Electric damper and check any
foreign matter is on the damper.
Information codes
Code Description Action
C103
Panel PBA
communication is not
working
Press the POWER button to restart the
product.
If the problem persists, disconnect the
power plug for more than 30 seconds.
Allow the product to cool and restart it.
If it is not resolved, please contact a
Samsung Electronics Service Center.
C121 Temperature sensor is
not working
C154
Main PBA
communication is not
working with Inverter
PBA
C162
Only occurs when
EEPROM Read or Write
is not working.
C163 If you need to check
the option code
C203
Inverter PBA
communication is not
working with Main
PBA
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