High
1-E3 on Worcester Bosch Greenstar 8000 Life

Your boiler is failing to recognise its internal settings chip, which means it cannot operate correctly until the electronic data connection is restored.

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

Code plug number Coding plug number.

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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