Fault Codes / Vaillant / F.523

Medium

flexoTHERM/aroTHERM — Sensor fault: VF1.

Possible causes

• Lead to sensor VF1 interrupted or short.

Check steps

• Check sensor VF1 & lead.
• Check resistance per manual.

Affected parts

• Temperaturfühler VF1

Safety note

Source: Vaillant resmi servis kılavuzu — ManualsLib s.38: 'F.523 – Sensor fault: VF1'

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

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