Samsung Electronics 4-7
Indoor unit display
X (Operation) X (Defrost) X(Timer)
(Fan) X (Filter)
Wire remote controller display
E154
Symptom
Error of Fan motor in the indoor unit
Failure
Fan error
4-2-3 Fan error
Yes
No
Yes
Is there foreign substance
stuck in the motor fan?
Yes
Is the motor connector
disconnected from the PCB?(CN301)
Replace the PCB and restart the unit
Connect the connector to
PCB and restart the unit
Remove the foreign substance
and restart the unit
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