How to fix Viessmann Vitodens 050-W fault code E211

What does the Viessmann Vitodens 050-W E211 fault code mean?

The E211 fault code on the Viessmann Vitodens 050-W indicates a malfunction with the domestic hot water (DHW) temperature sensor. This sensor is crucial for accurately measuring the water temperature and ensuring proper operation of the heating system.

Common Causes

  • Faulty Temperature Sensor: The sensor may have failed or become damaged, leading to incorrect temperature readings.
  • Wiring Issues: Damaged or loose wiring connections to the temperature sensor can disrupt its functionality, causing the fault code to appear.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves electrical components and safety risks associated with gas appliances.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for replacing the DHW temperature sensor is approximately £150 to £200, which includes the cost of the part and labour. This price reflects the typical cost of the sensor and the expertise required for installation.