BoilerFaultCodesTechnical description
Fan failure: check the fan and wiring.
What causes this fault?
This fault occurs when the boiler's internal computer detects that the fan is not spinning at the correct speed to safely expel exhaust gases. The most common reason is that the fan motor has burnt out or seized, though it can also be caused by loose electrical connections or a fault on the main control board. Because the boiler cannot guarantee that harmful fumes are being moved out of the flue, it shuts down immediately as a safety precaution.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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