BoilerFaultCodes F.000 High
Boiler Fault Code F.000
Also written as F000 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.000 appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has lost the ability to accurately measure the temperature of the water flowing through it, so it has shut down to prevent overheating. (As reported on Vaillant ecoTEC Plus 832)
Pick your boiler brand for the F.000 fix
Source
Information for the F.000 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