BoilerFaultCodesYour boiler has detected an electrical issue with the gas control system and has shut down as a safety precaution.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Contact electricity provider
What causes this fault?
This fault occurs when the boiler's main control board sends a signal to the gas valve but does not receive the correct electrical response back. It is typically caused by a mechanical failure within the valve itself, a loose connection in the internal wiring, or a fault on the circuit board preventing it from controlling the fuel supply safely.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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A boiler cover plan would cover faults like Gas Valve Fault — no call-out fees, no surprises.
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Could it be time for a new boiler?
If repair costs are adding up, a new energy-efficient boiler could be the smarter long-term choice.
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