Fan Error - Samsung AC052MNMSEH Service Manual

4-3-4 Fan error

Wire remote controller display
Symptom
Failure
Is the motor connector
disconnected from the PCB?(CN301)
No
LED of BLDC PBA is turned on?
Yes
Was FAN stopping in operation?
Yes
Replace the MAIN/BLDC PCB and
restart the unit.
4-10
E154
Error of Fan motor in the indoor unit
Fan error
Yes
No
Is the power wire connected properly?
No
How soon do the error occur after fan
Replace the MAIN/BLDC PCB and
Connect the connector to
PCB and restart the unit
Yes
Replace the BLDC PCB
and restart the unit.
opreation?
About one minute
restart the unit.
No After normal connection of
power wire, restart the unit.
Replace the BLDC PCB
and restart the unit.
More than
6 minutes
Samsung Electronics