Samsung RHF025EE Service Manual page 71

9-4-8 DAMPER Error
Error Mode DAMPER Error
Display
Check Method Check error if there is no input in case of DAMPER output for 100 seconds (time required when it rotates 5 turns).
Cause PCB check, Motor check, Switch check
Sensor SPEC.
No
Is DAMPER switch working?
PCB check or
replacement
No
Is OPEN/SHORT signal working
at connector (CN51)?
Switch check or
replacement
PCB check or replacement
9-10
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Yes
Yes
Yes
E654 code appears when unit operation
starts or while it is in operation.
Is DAMPER Motor connector of
PCB(CN72) dislocated from PCB?
No
Is DAMPER switch connector
of PCB (CN51) dislocated from PCB?
No
Is AC220-240V power measured from
connector (CN72) ①↔③?
No
PCB check or replacement
Yes
Assembly the
connector
Check operation
Yes
Assembly the
connector
Check operation
Samsung Electronics