BoilerFaultCodes 50° neon flashing High
Boiler Fault Code 50° neon flashing
Also written as 50NEONFLASHING — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 50° neon flashing 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 has detected that the fan, which safely clears waste gases away, is not spinning as fast as it needs to for the boiler to light safely. (As reported on Potterton Performa 28i)
Pick your boiler brand for the 50° neon flashing fix
Source
Information for the 50° neon flashing 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