High Lockout
J61 on Ideal HP290

Your boiler has detected an electrical fault with the internal fan, which is preventing the unit from starting up for safety reasons.

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 Connections Short Circuit

What causes this fault?

This fault occurs when the boiler's control board detects an electrical short circuit within the fan system. It is usually caused by water ingress onto the electrical components, a degraded internal wiring harness, or a failure in the fan motor's windings. For safety, the boiler will prevent the ignition sequence until the electrical circuit is restored to a safe state.

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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