Fault Codes / Viessmann / 2D

Vitocal — Open circuit, liquid gas temperature sensor — compressor switches off.

Possible causes

• Liquid gas sensor (Pt500A) open circuit.

Check steps

• Check resistance (Pt500A) at terminals X25.17/X25.18, replace sensor if needed.

Affected parts

• Flüssiggasfühler

Safety note

Source: Viessmann Vitotronic 200 Typ WO1C Serviceanleitung für die Fachkraft (2017-01), "Übersicht der Meldungen" §Störungsbehebung, Art.-Nr. 5813961

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

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