BoilerFaultCodesWorcester Bosch 2956 Fault Code
The Worcester Bosch 2956 fault code means: your boiler has detected that a specific accessory or additional part has been connected and needs to be set up through the control panel.. It appears on 7 Worcester Bosch models in our database.
Technical description: Hydraulic configuration at the boiler activated
What causes the Worcester Bosch 2956 fault?
This code occurs when the boiler detects that a new internal component or external hydraulic accessory has been electrically connected but not yet configured in the software. It is essentially the boiler asking for permission to use a new part it has identified on its system. This typically happens during the initial installation or after a control board has been replaced.
DIY fix possible
Navigate to the 'Settings' menu on the boiler screenSelect 'Hydraulic Configuration' and confirm the installed setupPress and hold 'Reset' to clear the message once the settings are saved
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Worcester Bosch models that show the 2956 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 2956 fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026