High Lockout
H6 on Ideal HP290

Your boiler has stopped working because the internal fan, which safely exhausts gases from the unit, is not spinning correctly.

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 system detects that the internal fan is either not spinning at all or is spinning at the wrong speed to safely remove exhaust gases. The most common reasons are a mechanical failure within the fan motor itself, a loose connection in the wiring, or the electronic circuit board failing to send the correct signals 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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