High
2946 on Worcester Bosch Greenstar 27CDi

Your boiler's internal computer chip has identified that the electronic component containing its specific configuration settings is either incorrect or not properly connected.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Incorrect code plug detected

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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