How much does it cost to fix boiler error code neon flashing (Overheat)?

Typical repair cost for the boiler neon flashing (Overheat) fault is £90-180 including labour.

neon flashing (Overheat) High

Boiler Fault Code neon flashing (Overheat)

Also written as NEONFLASHINGOVERHEAT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code neon flashing (Overheat) 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 become too hot and has shut itself down as a safety precaution to prevent damage. (As reported on Baxi Bahama 80e / 105e)

Pick your boiler brand for the neon flashing (Overheat) fix

Baxi neon flashing (Overheat) 1 model

Source

Information for the neon flashing (Overheat) 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