Fault Codes / Viessmann / AC

Viessmann AC

Critical

Vitocal — Compressor shutdown (protection).

Viessmann AC: Compressor shutdown (protection). This fault typically halts operation and needs immediate attention.

Possible causes

Protection function shut compressor off.
Pressure/temperature limit reached.

Check steps

Check HP/LP & discharge temperature.
Check flow & charge.

Affected parts

Verdichter
Sensoren

Safety note

Hot discharge side & follow F-Gas.

Source: Viessmann resmi servis kılavuzu — Manual p.38: 'AC Verdichterabschaltung' = Verdichter Außeneinheit dauerhaft ausgeschaltet wegen gefährlichem Betriebszustand. Matches Enthalio DB.

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

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