BoilerFaultCodes Air Flow Monitor Neon High
Boiler Fault Code Air Flow Monitor Neon
Also written as AIRFLOWMONITORNEON — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Air Flow Monitor Neon appears across 2 boiler brands and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has detected an issue with how it is venting exhaust gases, which has caused it to shut down for safety. (As reported on Potterton Performa 24 Eco HE)
Pick your boiler brand for the Air Flow Monitor Neon fix
Source
Information for the Air Flow Monitor Neon 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