What does the Vaillant ecoFIT pure F28 fault code mean?
The F28 fault code on a Vaillant ecoFIT pure boiler indicates that there is no gas supply to the appliance. This can prevent the boiler from igniting and functioning properly, leading to a lack of heating and hot water.
Common Causes
- Gas Supply Issue: There may be a problem with the gas supply to the boiler, such as a shut-off valve being closed or a gas leak.
- Faulty Gas Valve: The gas valve within the boiler may be malfunctioning, preventing gas from reaching the burner.
Can I fix it myself? (DIY)
It is crucial to call a Gas Safe Engineer for any issues related to gas supply or electrical components. Attempting to fix these problems without proper training 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 a simple gas supply problem or requires replacement of the gas valve, which can be more expensive.