BoilerFaultCodes F004 High
Boiler Fault Code F004
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F004 appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is failing to light the gas flame required to provide heating and hot water. (As reported on Intergas Xclusive)
Pick your boiler brand for the F004 fix
Source
Information for the F004 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