Bosch A01 (5981)

Critical

Compress — Wrong rotation direction in compressor.

Bosch A01 (5981): Wrong rotation direction in compressor. This fault typically halts operation and needs immediate attention.

Possible causes

Phases swapped at connection (rotation field).

Check steps

Check phase sequence, swap two phases.

Affected parts

Verdichter (bei Wicklungsschaden)
Anlaufkondensator
Motorschutzschalter

Safety note

400V — isolate power.

Source: Bosch resmi servis kılavuzu — Doc: 'A01 Installer Info: Incorrect running direction of compressor... triggered if condensing pressure has not increased by least 0.5 bar in 10 s after run signal... Wrong rotation direction in compressor.'

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

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