BoilerFaultCodes 50°C neon flashing High
Boiler Fault Code 50°C neon flashing
Also written as 50CNEONFLASHING — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 50°C neon flashing 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 detected a fault and stopped working, and it requires a manual reset to attempt to clear the error. (As reported on Potterton Performa 24)
Pick your boiler brand for the 50°C neon flashing fix
Source
Information for the 50°C 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