Medium
2968 on Worcester Bosch Greenstar 8000 Style Combi

Your boiler has detected that the water pressure in your heating system has dropped too low and needs to be topped up to work correctly.

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

Refilling system pressure

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.

DIY fix possible

Locate the internal filling link underneath your boilerOpen the filling valve slowly until the pressure gauge on the display shows between 1.0 and 1.5 barClose the valve tightly and check for any signs of leaks

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