How much does it cost to fix boiler error code neons flashing?

Typical repair cost for the boiler neons flashing fault is £90-180 including labour.

neons flashing High

Boiler Fault Code neons flashing

Also written as NEONSFLASHING — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code neons flashing appears across 2 boiler brands and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has sensed it is getting too hot and has shut itself down as a safety precaution. (As reported on Potterton Performa 24 Eco HE)

Pick your boiler brand for the neons flashing fix

Baxi neons flashing 2 models Potterton neons flashing 2 models

Source

Information for the neons 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