How to fix Viessmann Vitodens 222-F fault code F95

What does the Viessmann Vitodens 222-F F95 fault code mean?

The F95 fault code on the Viessmann Vitodens 222-F indicates a problem with the system guidelines, which may relate to incorrect settings or configuration issues within the boiler’s control system. This fault can prevent the boiler from operating correctly, leading to heating or hot water supply issues.

Common Causes

  • Incorrect System Configuration: The boiler may be set up incorrectly, leading to miscommunication between components.
  • Software Glitch: A temporary software issue or bug in the boiler’s control system can trigger the F95 fault code.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer to diagnose and resolve this fault, as it may involve complex system settings or software that require professional expertise.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for resolving the F95 fault code could range from £150 to £300, depending on whether a software update or reconfiguration is needed, as well as any potential parts replacement.