BoilerFaultCodesIdeal Gas Valve Fault Fault Code
Also written as GASVALVEFAULT — same fault.
The Ideal Gas Valve Fault fault code means: your boiler has detected an electrical issue with the gas control system and has shut down as a safety precaution.. It appears on 3 Ideal models in our database.
Technical description: Contact electricity provider
What causes the Ideal Gas Valve Fault fault?
This fault occurs when the boiler's main control board loses the ability to communicate with or power the gas valve properly. The most common reason is an internal electrical failure within the valve's solenoid or a communication break in the wiring harness connecting the components. As the boiler cannot safely regulate the flow of fuel, it shuts down immediately to prevent any risk.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Ideal models that show the Gas Valve Fault fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal Gas Valve Fault fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026