BoilerFaultCodesYour boiler has stopped working because the fan that removes waste gases is either spinning at the wrong speed or has stopped completely.
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: Fan speed incorrect or fan failed.
What causes this fault?
This fault occurs when the boiler's main control board detects that the internal fan is not rotating at the speed required to safely exhaust waste gases. The most common reason is a mechanical failure within the fan motor itself, though loose electrical connections or a fault on the main circuit board can also prevent the fan from starting.
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 F2 — no call-out fees, no surprises.
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