2911 V High

Worcester Bosch 2911 V Fault Code

Also written as 2911V — same fault.

The Worcester Bosch 2911 V fault code means: your boiler has failed to set its internal flame settings correctly during a startup check and cannot run safely.. It appears on 1 Worcester Bosch model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: Calibration failed
Typical repair cost £120-350 (including labour)

DIY fix possible

Press the 'Reset' button on the boiler control panel and hold for three seconds.Wait for the boiler to attempt the calibration process again.Ensure your gas supply is active by checking if other gas appliances in your home are working.

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 2911 V fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Worcester Bosch 2911 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