BoilerFaultCodes Red flashing light (Gas) High
Boiler Fault Code Red flashing light (Gas)
Also written as REDFLASHINGLIGHTGAS — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Red flashing light (Gas) 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 stopped working because it cannot get a steady supply of gas to stay lit. (As reported on Glow-worm Compact)
Pick your boiler brand for the Red flashing light (Gas) fix
Source
Information for the Red flashing light (Gas) 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