How much does it cost to fix boiler error code F14?

Typical repair cost for the boiler F14 fault is £150-300 including labour.

F14 High

Boiler Fault Code F14

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 31 August 2026

Fault code F14 appears across 7 boiler brands and 21 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 that the water inside the heating system has become dangerously hot and has shut itself down to prevent damage. (As reported on Glow-worm Xtramax HE)

Pick your boiler brand for the F14 fix

British Gas F14 1 model Euroterm F14 1 model Ferroli F14 10 models Glow-worm F14 2 models Ideal F14 1 model Saunier Duval F14 2 models Vaillant F14 4 models

Source

Information for the F14 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 31 August 2026