Medium
250 V on Worcester Bosch Greenstar 2000 GR2301iW 25 C

Your boiler has experienced a temporary computer memory glitch and needs to be reset to restore normal operation.

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

Default software error

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar 2000 Gr2301iw 2023 installation & service 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

Locate the reset button or turn the heating mode dial to the reset position on your boiler's control panel.Hold the reset button for approximately 5 seconds until the screen clears.Wait a few moments to see if the boiler restarts normally.

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All 143 fault codes on the Greenstar 2000 GR2301iW 25 C

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

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