ENTHALIO

Fault Codes / Viessmann / B0

VI

Viessmann B0

High

Vitocal — Device ID – HP won't start or runs at reduced efficiency.

Viessmann B0: Device ID – HP won't start or runs at reduced efficiency. This fault noticeably affects operation.

Possible causes

Check steps

Affected parts

Safety note

De-energise before work.

Source: Viessmann resmi servis kılavuzu — Serviceanleitung WO1C, section 'B0 Gerätekennung' (p.105-106): 'Wärmepumpen mit Kältekreisregler: Wärmepumpe geht in Betrieb. Kältekreis läuft mit verminderter Effizienz. Übrige Wärmepumpen: Wärmepumpe geht nicht in Betrieb.' Matches app text exactly.

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

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