Pilot does not remain alight High
Boiler Fault Code Pilot does not remain alight
Also written as PILOTDOESNOTREMAINALIGHT — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Pilot does not remain alight 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's pilot light is going out as soon as you let go of the control knob, meaning the burner cannot stay lit to provide heat. (As reported on Alpha 240XE)
Pick your boiler brand for the Pilot does not remain alight fix
Source
Information for the Pilot does not remain alight 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 7 July 2026