How much does it cost to fix boiler error code Overheat Cut-off?

Typical repair cost for the boiler Overheat Cut-off fault is £150-300 including labour.

Overheat Cut-off High

Boiler Fault Code Overheat Cut-off

Also written as OVERHEATCUTOFF — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code Overheat Cut-off appears across 1 boiler brand 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 switched itself off because it has detected an unsafe rise in internal temperature and needs to cool down before it can restart. (As reported on Worcester Bosch 28 i SI)

Pick your boiler brand for the Overheat Cut-off fix

Worcester Bosch Overheat Cut-off 4 models

Source

Information for the Overheat Cut-off 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 7 July 2026