E80 High
Boiler Fault Code E80
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E80 appears across 4 boiler brands and 18 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 a communication failure or an electrical fault between its central controller and the gas control system, preventing it from firing up safely. (As reported on Biasi Rinnova Adaptive Combi)
Pick your boiler brand for the E80 fix
Source
Information for the E80 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