Low
268 on Worcester Bosch Greenstar i

Your boiler is currently in a manual testing mode that was triggered via the settings menu, meaning it is performing diagnostic checks rather than heating your home as usual.

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

Component test mode. Appliance is running the manual component test as activated in the menus.

From this model's manual
Verified against the Worcester Bosch Greenstar I installation & service manual, page 37.
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 manual/reset button or menu settings on your boiler control panelExit or cancel the 'Component Test' or 'Installation' menuRestart the boiler to return it to normal operating mode

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