What does the Baxi Duo-tec F28 fault code mean?
The F28 fault code on a Baxi Duo-tec boiler indicates a failure to ignite, which can prevent the boiler from heating water or providing central heating. This issue is often related to problems with the gas supply, ignition components, or electrical connections.
Common Causes
- Gas Supply Issue: There may be a blockage or interruption in the gas supply, preventing the boiler from igniting.
- Faulty Ignition Electrode: The ignition electrode may be damaged or dirty, failing to create a spark for ignition.
Can I fix it myself? (DIY)
If you are comfortable and qualified, you can check the gas supply and ensure that the boiler is receiving gas. However, for any electrical or gas-related issues, it is crucial to call a Gas Safe Engineer to avoid safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F28 fault could range from £150 to £300, depending on whether the ignition electrode needs replacement or if there are gas supply issues that require professional intervention.