Your boiler is unable to correctly control the flow of gas, causing it to shut down for safety purposes.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Fuel valve control fault
What causes this fault?
This fault occurs when the boiler's main computer loses the ability to communicate with or operate the gas valve safely. The most common reason is an electronic failure within the printed circuit board (PCB) or a direct mechanical failure of the gas valve itself, preventing the boiler from controlling the flame.
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.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like F.61 — 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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