Medium
249 on Worcester Bosch Greenstar 2000

Your boiler's computer is experiencing a temporary processing error and needs to be reset to clear the glitch.

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

Internal software error

Shared across the Greenstar 2000 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

Locate the 'Reset' button on the front control panel.Press and hold the button for 3 to 5 seconds.Wait for the boiler to restart and check if the error code disappears.

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Related fault codes

All 235 fault codes on the Greenstar 2000

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

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