High
1-E1 on Worcester Bosch Greenstar 8000 Life

Your boiler's computer is reporting a configuration mismatch between its internal components, meaning it has paused operation to prevent incorrect performance.

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

Control device version Software version of the control unit.

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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