How much does it cost to fix boiler error code F50?

Typical repair cost for the boiler F50 fault is £150-300 including labour.

F50 High

Boiler Fault Code F50

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code F50 appears across 1 boiler brand and 6 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 the internal mechanism that controls the gas supply, meaning it has safely shut itself down to prevent unsafe operation. (As reported on Ferroli Arena 30A)

Pick your boiler brand for the F50 fix

Ferroli F50 6 models

Source

Information for the F50 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