High Lockout
2085 on Worcester Bosch Greenstar 8000 Life/Style

Your boiler has encountered an internal software or communication error that is preventing it from heating your home.

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

Internal fault

What causes this fault?

This fault occurs when the boiler's internal computer brain fails to communicate properly with the other electrical components. It is physically caused by a data processing error on the main circuit board or a loose connection in the wiring that prevents the system from safely managing the heating process.

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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