BoilerFaultCodes Illuminated reset light High
Boiler Fault Code Illuminated reset light
Also written as ILLUMINATEDRESETLIGHT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Illuminated reset light appears across 1 boiler brand 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 switched itself off because it has reached an unsafe temperature and needs to be cooled down and reset. (As reported on Glow-worm Micron 30ff)
Pick your boiler brand for the Illuminated reset light fix
Source
Information for the Illuminated reset light 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