What does the Viessmann Vitodens 222-F F58 fault code mean?
The F58 fault code on the Viessmann Vitodens 222-F indicates that there are faulty system parameters affecting the boiler’s operation. This can result from incorrect settings or issues with the boiler’s sensors or control system.
Common Causes
- Incorrect System Settings: The boiler may have been incorrectly configured during installation or maintenance, leading to parameter mismatches.
- Faulty Sensors: Malfunctioning temperature or pressure sensors can send incorrect data to the control unit, triggering the F58 fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and resolve this issue, as it may involve complex electrical or gas-related problems that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F58 fault code could be around £150 to £300, depending on whether it requires recalibration of settings or replacement of faulty sensors.