BoilerFaultCodesYour boiler has detected that the internal fan is spinning too fast, which is preventing the system from starting safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: fan error (high rpm)
What causes this fault?
This fault occurs when the boiler's control board detects that the fan is spinning at a higher speed than required for safe combustion. It is typically caused by a failing hall effect sensor within the fan motor or a software error on the main circuit board that can no longer regulate the voltage correctly.
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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