How much does it cost to fix boiler error code GAS VALVE FAULT?

Typical repair cost for the boiler GAS VALVE FAULT fault is £280-550 including labour.

GAS VALVE FAULT High

Boiler Fault Code GAS VALVE FAULT

Also written as GASVALVEFAULT — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code GAS VALVE FAULT appears across 1 boiler brand and 7 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is unable to safely control the flow of gas needed to stay alight, so it has shut down to prevent any risks. (As reported on Ideal Concord CXC 48 116)

Pick your boiler brand for the GAS VALVE FAULT fix

Ideal GAS VALVE FAULT 7 models

Source

Information for the GAS VALVE FAULT 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