Boiler Fault Code Reset neon illuminated (Red)

Also written as RESETNEONILLUMINATEDRED — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code Reset neon illuminated (Red) 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 has detected an internal error and has entered a lock-out state, meaning it has switched itself off to prevent damage. (As reported on Baxi Combi 80e)