Low
200 on Worcester Bosch Greenstar 8000 F

Your boiler is not currently experiencing a fault; it is simply indicating that it is actively running to provide central heating for your home.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Boiler in heating mode

Shared across the Greenstar 8000 F range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
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

Check your thermostat to ensure the target temperature is set correctly.Wait for the house to reach temperature; the code will change once the heating demand is met.No action is required as this is an operational status code, not an error.

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Related fault codes

All 99 fault codes on the Greenstar 8000 F

Seeing a different code? Every code this model can display, in one place.

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