Faulty ignition High
Boiler Fault Code Faulty ignition
Also written as FAULTYIGNITION — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Faulty ignition appears across 1 boiler brand and 4 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, which means your heating and hot water will not work until the ignition system is checked. (As reported on Biasi Basica Combi)
Pick your boiler brand for the Faulty ignition fix
Source
Information for the Faulty ignition 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