What does the Viessmann Vitodens 222-F F30 fault code mean?
The F30 fault code on the Viessmann Vitodens 222-F indicates a malfunction with the temperature sensor, which may lead to incorrect temperature readings and affect the boiler’s performance. This issue can prevent the boiler from operating efficiently or cause it to shut down entirely.
Common Causes
- Faulty Temperature Sensor: The sensor may be damaged or malfunctioning, leading to inaccurate 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 for this issue, as working with gas appliances can be dangerous. Attempting to fix electrical components without proper training can also pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty temperature sensor on a Viessmann Vitodens 222-F is around £150 to £250. This includes the cost of the part and labour, as the sensor itself typically costs between £50 and £100.