Fault Codes / Fujitsu / 51

FU

Fujitsu 51

Critical

Indoor unit fan motor error.

Fujitsu 51: Indoor unit fan motor error. This fault typically halts operation and needs immediate attention.

Possible causes

Fan motor stuck/faulty.
Feedback signal lost.

Check steps

Check fan wheel runs freely.
Check motor winding and connector.

Affected parts

Innengerät-Lüftermotor

Safety note

230V — isolate power.

Source: Fujitsu General Service Manual SR_AS092EF_01, s.03-32

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

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