High
112 on Worcester Bosch Greenstar i Junior

Your boiler's internal computer chip has identified that it is configured for a specific model setup that doesn't match its current operation.

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

12kW NG with internal diverter valve code plug

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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