Medium
268 on Worcester Bosch Greenstar 27CDi

Your boiler has performed an internal safety test of its electronic controls and is currently waiting for you to restart the system to see if the error clears.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Relay test was activated

DIY fix possible

Switch off the boiler at the fused spur or mains power switchWait for 60 secondsTurn the power back on to allow the boiler to perform a fresh self-test

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