BoilerFaultCodes neon flashing (Spark/Ignition) High
Boiler Fault Code neon flashing (Spark/Ignition)
Also written as NEONFLASHINGSPARKIGNITION — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code neon flashing (Spark/Ignition) 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 tried to light the gas but failed, so it has locked itself out for safety. (As reported on Baxi Bahama 80e / 105e)
Pick your boiler brand for the neon flashing (Spark/Ignition) fix
Source
Information for the neon flashing (Spark/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