Medium
1-E1 on Worcester Bosch Greenstar 8000 Life System

Your boiler's computer software is reporting a version mismatch or a communication error between its internal electronic systems.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Control device version Software version of the control unit.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

1-E2View →

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