ER 01 + Reset High

Boiler Fault Code ER 01 + Reset

Also written as ER01RESET — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code ER 01 + Reset appears across 2 boiler brands and 12 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has failed to light the gas flame or cannot detect that it is lit, causing the system to shut down for safety. (As reported on Biasi Riva Compact 28S)

Pick your boiler brand for the ER 01 + Reset fix

Biasi ER 01 + Reset 11 models Johnson Starley ER 01 + Reset 1 model

Source

Information for the ER 01 + Reset 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