BoilerFaultCodes NEON2 High
Boiler Fault Code NEON2
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code NEON2 appears across 2 boiler brands and 14 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is receiving a request to turn on the heating or hot water, but it has not yet successfully fired the burner. (As reported on Glow-worm Micron 30ff)
Pick your boiler brand for the NEON2 fix
Source
Information for the NEON2 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