What does the Viessmann Vitodens 200-W F32 fault code mean?
The F32 fault code indicates a malfunction in the return temperature sensor of the Viessmann Vitodens 200-W boiler. This sensor is crucial for monitoring the temperature of the water returning to the boiler, and its failure can disrupt the heating system’s efficiency.
Common Causes
- Sensor Failure: The return temperature sensor may be defective or damaged, leading to incorrect temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can cause communication problems, resulting in the fault code being triggered.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to diagnose and repair this issue, as working with gas appliances can be dangerous. Attempting to fix electrical components without proper training can also lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the return temperature sensor is approximately £150 to £200. This includes the cost of the part and labour, as sensor replacement typically requires professional expertise.