Low
268 on Worcester Bosch Greenstar 30i

Your boiler is currently running a self-diagnostic check, which usually happens briefly after a reset or power cut.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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 phase

Shared across the 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

Wait up to 10 minutes for the test cycle to complete automaticallyEnsure there is no active demand for heating or hot water during this timeIf the code persists for over 30 minutes, try a manual reset of the boiler

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