What does the Viessmann Vitodens 111-W F62 fault code mean?
The F62 fault code on the Viessmann Vitodens 111-W indicates a malfunction in the domestic hot water (DHW) pressure sensor. This issue can prevent the boiler from properly regulating water pressure, affecting hot water delivery.
Common Causes
- Faulty Pressure Sensor: The pressure sensor may be defective or damaged, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the pressure sensor can disrupt its functionality.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional handling for safety and compliance.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty DHW pressure sensor on a Viessmann Vitodens 111-W is around £150 to £250. This includes the cost of the part and labour, reflecting the complexity of the repair and the need for a qualified technician.