BoilerFaultCodesYour boiler has detected a communication problem between the main computer and the gas valve, meaning it cannot safely light the flame to provide heating or hot water.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Gas valve control circuit error
What causes this fault?
This fault occurs when the boiler's main control board loses the ability to send or receive electrical signals to the gas valve. The most common reason is an electronic failure within the circuit board itself, though it can also be caused by loose wiring or a short circuit in the gas valve's internal solenoid.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like F.61 — no call-out fees, no surprises.
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