76 High

Boiler Fault Code 76

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 76 appears across 3 boiler brands and 17 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's main control board has detected a setup error, meaning it no longer recognises which specific model it is meant to be. (As reported on Worcester Bosch Greenstar Utility 18/25)

Pick your boiler brand for the 76 fix

Alpha 76 13 models Vokera 76 3 models Worcester Bosch 76 1 model

Source

Information for the 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 27 April 2026