How much does it cost to fix boiler error code GAS CONTROL TAP STIFF (USERS)?

Typical repair cost for the boiler GAS CONTROL TAP STIFF (USERS) fault is £120-220 including labour.

GAS CONTROL TAP STIFF (USERS) High

Boiler Fault Code GAS CONTROL TAP STIFF (USERS)

Also written as GASCONTROLTAPSTIFFUSERS — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code GAS CONTROL TAP STIFF (USERS) appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning The dial you use to turn your boiler's gas supply on or off is physically jammed, making it difficult or impossible to operate safely. (As reported on Chaffoteaux Britony II 30FF)

Pick your boiler brand for the GAS CONTROL TAP STIFF (USERS) fix

Chaffoteaux GAS CONTROL TAP STIFF (USERS) 2 models

Source

Information for the GAS CONTROL TAP STIFF (USERS) 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