BoilerFaultCodes 01E High
Boiler Fault Code 01E
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 01E appears across 1 boiler brand 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 has stopped working as a safety precaution because it failed to light the flame or maintain it correctly. (As reported on Biasi Concept 400 20 1 Mfs)
Pick your boiler brand for the 01E fix
Source
Information for the 01E 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