What does the Viessmann Vitodens 111-W F57 fault code mean?
The F57 fault code on the Viessmann Vitodens 111-W indicates a malfunction in the heating circuit control. This typically means there is an issue with the communication or functionality of the heating control components.
Common Causes
- Faulty Control Board: The control board may have developed a fault, preventing it from properly managing the heating circuit.
- Wiring Issues: Damaged or loose wiring connections can disrupt communication between components, leading to the F57 error.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and potential gas safety risks. Attempting to fix it without proper training could be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F57 fault could range from £150 to £300, depending on whether the control board needs replacement or if wiring issues are present. This estimate includes parts and labour for a qualified engineer.