BoilerFaultCodes Pilot On light Low
Boiler Fault Code Pilot On light
Also written as PILOTONLIGHT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Pilot On light 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 successfully lit its small internal starter flame and is ready to heat your home. (As reported on Baxi Solo PF)
Pick your boiler brand for the Pilot On light fix
Source
Information for the Pilot On 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