High Lockout
L....8..... on Ideal Esprit HE

Your boiler has stopped working because the fan that removes exhaust fumes is not spinning correctly or communicating with the system.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

FAN ERROR

What causes this fault?

This fault occurs when the boiler's control board cannot confirm that the fan is spinning at the correct speed to safely clear exhaust fumes. It is usually caused by a mechanical failure of the fan motor, a loose connection in the internal wiring, or a fault on the main circuit board that prevents it from sending power to the fan.

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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