BoilerFaultCodesYour boiler's fan is not spinning at the correct speed, which prevents the system from safely clearing exhaust fumes and starting the ignition process.
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
What causes this fault?
This fault occurs when the boiler's control system detects that the fan is either not spinning at all or is rotating at the wrong speed to safely vent exhaust gases. The most common reason is a mechanical failure within the fan motor or a communication break between the electronic control board and the fan assembly.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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