Your boiler has stopped working because the internal fan that moves waste gases out of the flue is not spinning.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: The fan is stationary and open circuit.
What causes this fault?
This fault occurs when the boiler's control system attempts to start the fan but detects no electrical life or movement from the motor. The most common reason is that the fan motor has burnt out or suffered a mechanical seizure, though it can also be caused by loose wiring or the main circuit board failing to send power to the component.
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 29 — no call-out fees, no surprises.
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