BoilerFaultCodes F.76 High
Boiler Fault Code F.76
Also written as F76 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.76 appears across 2 boiler brands and 24 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has shut down because a safety sensor has detected that the main heating component is getting too hot or has a broken internal fuse. (As reported on Vaillant ecoTEC)
Pick your boiler brand for the F.76 fix
Source
Information for the F.76 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