What does the Viessmann Vitodens 050-W E276 fault code mean?
The E276 fault code on the Viessmann Vitodens 050-W indicates a problem with the system venturi, which is responsible for regulating the air and gas mixture for combustion. This issue can lead to inefficient operation or complete shutdown of the boiler.
Common Causes
- Blocked Venturi: Debris or blockages in the venturi can disrupt airflow, causing the fault code to trigger.
- Faulty Pressure Sensor: A malfunctioning pressure sensor may incorrectly read the pressure levels, leading to the E276 fault.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and combustion components that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E276 fault code is around £150 to £250, primarily due to the need for professional assessment and potential replacement of the venturi or associated components.