Worcester Bosch Code Plug 8716122266

The Worcester Bosch 8716122266 is a code plug supplied for Greenstar 4000 Combi appliances. It is a small configuration component that sits on the appliance control board and defines the operating parameters the electronics use to run the boiler. Worcester Bosch fits code plugs to individual model variants so the control board recognises the correct appliance specification and operates to its designed settings.

• The appliance fails to run correctly after a control board replacement
• Configuration or parameter fault codes are logged by the boiler
• The boiler does not hold its expected operating settings or rated output
• Repeated lockouts where the control board cannot correctly identify the appliance variant
• The existing code plug is missing, damaged or has loose or corroded pins

• Check the GC number and exact appliance model against the compatibility list, as code plugs are specific to the appliance variant.
• Cross-check the alternative number 8922957 if it appears in your documentation or on the old component.
• Confirm the appliance serial and model details match the Greenstar 4000 Combi range before fitting.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.