High Lockout
HrE on Worcester Bosch GB162

Your boiler is experiencing a critical control system failure that causes it to shut down and attempt to restart itself repeatedly.

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

The boiler keeps resetting

What causes this fault?

This fault occurs when the boiler's internal computer system loses its place or experiences a communication break, forcing it to constantly reboot to try and clear the error. It is typically caused by a failing electronic control board or a loose connection in the wiring that prevents the main components from talking to each other properly.

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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