BoilerFaultCodesYour boiler has stopped working because the internal fan, which safely clears exhaust fumes, is not running correctly.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Fan Fault
What causes this fault?
This fault occurs when the boiler's control board sends a signal to the fan but does not receive the correct speed feedback in return. The most common cause is a mechanical failure within the fan motor or a buildup of dust and debris that prevents the blades from spinning at the required safety speed.
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 4.7 — 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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