BoilerFaultCodesAlpha Pilot does not remain alight Fault Code
Also written as PILOTDOESNOTREMAINALIGHT — same fault.
The Alpha Pilot does not remain alight fault code means: 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.. It appears on 1 Alpha model in our database.
Technical description: Release the control and turn it off in the direction of the arrow. Wait at least 3 minutes before attempting to relight.
DIY fix possible
Turn the control knob to the off position (following the arrow).Wait at least 3 minutes for any unburnt gas to clear.Follow the lighting instructions: press and hold the knob fully in while sparking the igniter.Continue holding the knob for 20-30 seconds after the flame appears before releasing slowly.
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Alpha models that show the Pilot does not remain alight fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Alpha Pilot does not remain alight fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026