Samsung Electronics 4-15
Indoor unit display
Symptom
Indoor unit fan does not run /Runs at excessive high speed and stops
Failure
Check if the motor connector is disconnected/ check the motor fan assembly status
4-3-3 Indoor FAN error
Yes
No
Yes
Is there foreign substance
stuck in the motor fan?
Yes
Is the motor connector
disconnected from the PCB?
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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