BoilerFaultCodes E 81 High
Boiler Fault Code E 81
Also written as E81 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E 81 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is failing to light the flame properly during start-up, so it has turned itself off for safety. (As reported on Warmhaus Enerwa)
Pick your boiler brand for the E 81 fix
Source
Information for the E 81 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