BoilerFaultCodes E83 High
Boiler Fault Code E83
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E83 appears across 2 boiler brands and 4 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 inconsistent flame, which is often caused by a temporary interruption in the gas supply or a slight blockage in the air vent. (As reported on Warmhaus Enerwa)
Pick your boiler brand for the E83 fix
Source
Information for the E83 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