BoilerFaultCodesYour boiler has stopped working because the internal fan is spinning at the wrong speed, preventing the system from safely venting gases.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Incorrect fan speed
What causes this fault?
This fault occurs when the boiler's control system detects that the internal fan is not spinning at the required speed to safely clear exhaust gases. The most common reason is a mechanical failure within the fan motor or a communication error where the main circuit board cannot correctly regulate or read the fan's rotation.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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