neon flashing (Fan) High
Boiler Fault Code neon flashing (Fan)
Also written as NEONFLASHINGFAN — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code neon flashing (Fan) 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 the internal fan, which safely exhausts fumes, is not spinning at the correct speed or has electrical trouble. (As reported on Baxi Bahama 80e / 105e)
Pick your boiler brand for the neon flashing (Fan) fix
Source
Information for the neon flashing (Fan) 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