What does the Viessmann Vitodens 222-F F28 fault code mean?
The F28 fault code on the Viessmann Vitodens 222-F indicates that the boiler has failed to detect a flame during the ignition process. This can prevent the boiler from operating and providing heating or hot water.
Common Causes
- Gas Supply Issues: Insufficient gas supply or a blockage in the gas line can prevent the boiler from igniting properly.
- Ignition Electrode Fault: A faulty ignition electrode may fail to create a spark, leading to no flame detection.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any gas-related issues, including the F28 fault. Attempting to fix gas appliances without proper qualifications can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F28 fault could range from £150 to £300, depending on whether the issue is with the gas supply or the ignition electrode. Replacement parts and labour will contribute to the overall cost.