BoilerFaultCodesYour boiler is trying to start up but the fan is moving at the wrong speed, preventing the heating from firing up safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Fan operating
What causes this fault?
This fault occurs when the boiler's internal computer detects that the fan is not spinning at the correct speed required for a safe ignition. The most common reason is a mechanical failure within the fan motor or a communication error where the control board loses track of how fast the fan is turning.
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 3 — 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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