High
1010 on Worcester Bosch Greenstar 8000 Life System

Your boiler has lost the digital connection between its main parts, meaning it cannot process instructions to heat your home or water.

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

No BUS communication. Cable for EMS-Bus is not correct connect or damaged.

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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