Samsung AC026JNNCEH Service Manual page 36

4-3-3 Indoor FAN error
Indoor unit display
Symptom
Failure
Replace the PCB and restart the unit
Samsung Electronics
X (Operation) X (Defrost)
Indoor unit fan does not run /Runs at excessive high speed and stops
Check if the motor connector is disconnected/ check the motor fan assembly status
Is the motor connector
disconnected from the PCB?
No
Is there foreign substance
stuck in the motor fan?
Yes
(Timer) X (Filter)
Yes
Yes
Connect the connector to
PCB and restart the unit
Remove the foreign substance
and restart the unit
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