How much does it cost to fix boiler error code Overheat light on?

Typical repair cost for the boiler Overheat light on fault is £90-250 including labour.

Overheat light on High

Boiler Fault Code Overheat light on

Also written as OVERHEATLIGHTON — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Overheat light on 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 automatically shut itself down to prevent damage. (As reported on Ideal Concord Super Series 4)

Pick your boiler brand for the Overheat light on fix

Ideal Overheat light on 1 model

Source

Information for the Overheat light on 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