How to fix Viessmann Vitodens 050-W fault code E195

What does the Viessmann Vitodens 050-W E195 fault code mean?

The E195 fault code on the Viessmann Vitodens 050-W indicates a malfunction with the temperature sensor, which is crucial for monitoring and regulating the boiler’s temperature. This issue can lead to inefficient heating and potential safety risks if not addressed promptly.

Common Causes

  • Faulty Temperature Sensor: The sensor may be damaged or malfunctioning, leading to incorrect temperature readings.
  • Wiring Issues: Damaged or loose wiring connections to the temperature sensor can disrupt its functionality.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer to diagnose and repair the issue, as working with gas appliances can be dangerous. Attempting to fix electrical components without proper training may lead to further complications.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for replacing a faulty temperature sensor on a Viessmann Vitodens 050-W is around £150 to £200. This includes the cost of the part and labour, as temperature sensors are typically priced between £50 and £100.