BoilerFaultCodes Faulty gas valve High
Boiler Fault Code Faulty gas valve
Also written as FAULTYGASVALVE — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Faulty gas valve appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is unable to light the gas burner because it isn't receiving any fuel, likely due to a mechanical failure or an electrical communication issue with the gas control valve. (As reported on Biasi Antares Combi)
Pick your boiler brand for the Faulty gas valve fix
Source
Information for the Faulty gas valve 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