BoilerFaultCodes E79 High
Boiler Fault Code E79
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E79 appears across 2 boiler brands and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is struggling to maintain its lowest flame setting, which is preventing it from running safely and efficiently. (As reported on Warmhaus Enerwa)
Pick your boiler brand for the E79 fix
Source
Information for the E79 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