BoilerFaultCodesTechnical description
Internal fan does not run. Replace fan.
What causes this fault?
This fault occurs when the boiler's control board sends power to the fan but does not receive any movement in return. The most common reason is that the fan motor has burnt out or seized up due to age, preventing it from clearing combustion gases so the boiler can safely fire up.
This fault often appears during the first cold spell of autumn when the fan, having sat idle over the summer, fails to spin up due to seized bearings.
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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