76 High

Boiler Fault Code 76

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 76 appears across 4 boiler brands and 15 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected an internal electrical communication error or a wiring issue that is preventing it from working safely. (As reported on Vokera Linea HE)

Pick your boiler brand for the 76 fix

Alpha 76 11 models Ideal 76 1 model Keston 76 1 model Vokera 76 2 models

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 7 July 2026