BoilerFaultCodesThe built-in fan that safely clears exhaust gases out of your home is not spinning, causing your boiler to shut down for safety.
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 isn’t starting up
What causes this fault?
This fault occurs when the boiler's internal computer tries to start the fan but doesn't receive the required signal that it is spinning. The most common reasons are a mechanical failure within the fan motor itself, a loose connection in the wiring, or a fault on the main circuit board that prevents it from sending power to the fan.
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 612 — 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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