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

Typical repair cost for the boiler F14 fault is £150-550 including labour.

F14 Emergency

Boiler Fault Code F14

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code F14 appears across 5 boiler brands and 26 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has shut down because the exhaust fumes have become dangerously hot, which could indicate a blockage or a heat exchanger problem. (As reported on Ferroli Bluehelix Tech)

Pick your boiler brand for the F14 fix

Ferroli F14 13 models Glow-worm F14 3 models Ideal F14 3 models Saunier Duval F14 5 models Vaillant F14 2 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 27 April 2026