How much does it cost to fix boiler error code F71?

Typical repair cost for the boiler F71 fault is £120-200 including labour.

F71 High

Boiler Fault Code F71

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code F71 appears across 1 boiler brand and 8 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because it is unable to accurately measure the temperature of the water being sent to your radiators, causing it to shut down for safety. (As reported on Heatline Monza)

Pick your boiler brand for the F71 fix

Heatline F71 8 models

Source

Information for the F71 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