Worcester Bosch 2957 V Fault Code
Also written as 2957V — same fault.
The Worcester Bosch 2957 V fault code means: your boiler's computer has detected a change in how the internal water system is set up, which usually happens during a service or after a part has been replaced.. It appears on 2 Worcester Bosch models in our database.
Technical description: Hydraulic configuration at the boiler activated
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Worcester Bosch models that show the 2957 V fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 2957 V 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