BoilerFaultCodesYour boiler has stopped working because the internal fan is not spinning correctly, meaning the system cannot safely clear away waste gases.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Air flow - Fan not running / no tacho signal
What causes this fault?
This fault occurs when the boiler's control system detects that the fan is not spinning at the required speed to safely vent exhaust gases. The most common reasons are a complete mechanical failure of the fan motor, a loose connection in the wiring, or a fault on the main circuit board that prevents it from sending power to the fan.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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