How much does it cost to fix boiler error code F011?

Typical repair cost for the boiler F011 fault is £120-220 including labour.

F011 High

Boiler Fault Code F011

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code F011 appears across 1 boiler brand and 5 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 problem with its internal temperature sensor, which means it cannot safely monitor the water temperature and has stopped working to prevent damage. (As reported on Intergas Xtreme)

Pick your boiler brand for the F011 fix

Intergas F011 5 models

Source

Information for the F011 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