Medium
2969 on Worcester Bosch Greenstar 8000 Style Combi

Your boiler has detected that it has been topped up with fresh water too many times, which suggests there is a hidden leak in your heating system that needs professional attention.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

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

What the manual says

Manufacturer manual

Maximum number of refills reached

From this model's manual
Verified against the Worcester Bosch Greenstar 8000 Life Style installation & service manual, page 80.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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