Fault Codes / Vaillant / F.1288
flexoTHERM/aroTHERM — DHW tank temperature sensor SP1 fault.
Vaillant F.1288: DHW tank temperature sensor SP1 fault. This fault usually isn't an immediate stop, but should be checked soon.
Source: Vaillant resmi servis kılavuzu — ManualsLib s.40: 'F.1288 – Fault: SP1 cylinder temperature sensor'
Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.
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