BoilerFaultCodesWorcester Bosch 2920 V Fault Code
Also written as 2920V — same fault.
The Worcester Bosch 2920 V fault code means: your boiler has stopped working because it cannot confirm that the flame is properly lit, causing the system to shut down for safety.. It appears on 4 Worcester Bosch models in our database.
Technical description: Error with the flame monitoring
What causes the Worcester Bosch 2920 V fault?
This fault occurs when the boiler's internal computer is unable to detect a steady flame during the ignition process or while the burner is running. It is often caused by a dirty or damaged sensing probe that can no longer 'see' the heat, or a communication failure in the wiring that carries this signal to the control board.
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 2920 V fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 2920 V fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.
- Worcester Bosch Greenstar 2000 manual (PDF)
- Worcester Bosch Greenstar 8000 Life & Style manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026