BoilerFaultCodes F.575 Low
Boiler Fault Code F.575
Also written as F575 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.575 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is no longer receiving temperature readings from your wall-mounted room controller and has defaulted to running based on internal settings instead. (As reported on Viessmann Vitodens 222-F B2TF)
Pick your boiler brand for the F.575 fix
Source
Information for the F.575 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026