BoilerFaultCodesYour boiler's fan is not spinning at the correct speed, which means it cannot safely clear exhaust gases and has shut down as a precaution.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Fan speed incorrect
What causes this fault?
This fault occurs when the boiler's internal computer detects that the fan is either spinning too slowly or not moving at all. The most common reason is a mechanical failure within the fan motor or a communication error on the main circuit board that prevents it from sending power to the fan. Without a functioning fan, the boiler cannot safely expel waste gases, so it shuts down as a safety precaution.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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