How much does it cost to fix boiler error code Code plug not detected.?

Typical repair cost for the boiler Code plug not detected. fault is £120-200 including labour.

Code plug not detected. High

Boiler Fault Code Code plug not detected.

Also written as CODEPLUGNOTDETECTED — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code Code plug not detected. appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has lost its unique configuration settings, which means the main internal controller cannot read the instructions it needs to operate correctly. (As reported on Worcester Bosch Greenstar 25CDi)

Pick your boiler brand for the Code plug not detected. fix

Worcester Bosch Code plug not detected. 2 models

Source

Information for the Code plug not detected. fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026