BoilerFaultCodesWorcester Bosch 2945 Fault Code
The Worcester Bosch 2945 fault code means: your boiler is rapidly cycling on and off because it cannot efficiently release the heat it is generating, which often points to a blockage or a bottleneck in your heating system.. It appears on 2 Worcester Bosch models in our database.
Technical description: Too many short heat demands in short time period
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Worcester Bosch models that show the 2945 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 2945 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 7 July 2026