BoilerFaultCodesYour boiler has stopped working because the internal fan, which safely removes waste gases from your home, is not spinning 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 system detects that the internal fan is either spinning at the wrong speed or not moving at all. The most common reason is a mechanical failure of the fan motor, though it can also be caused by loose electrical connections or a communication error from the main circuit board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like F3 — 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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