What does the Viessmann Vitodens 200-W F36 fault code mean?
The F36 fault code indicates a malfunction with the heating circuit sensor in the Viessmann Vitodens 200-W boiler. This sensor is crucial for monitoring the temperature of the heating circuit, and its failure can lead to inefficient heating or system shutdown.
Common Causes
- Faulty Sensor: The heating circuit sensor may be defective or damaged, leading to incorrect temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the 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 for this issue, as working with boiler sensors and electrical components can be hazardous. Attempting repairs without proper training may lead to further damage or safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the heating circuit sensor is around £150 to £250. This includes the cost of the sensor and labour, as it requires professional installation to ensure safety and compliance with regulations.