What does the Baxi Platinum F25 fault code mean?
The F25 fault code on a Baxi Platinum boiler indicates an ignition failure, meaning the boiler is unable to ignite the gas to start the heating process. This can prevent the boiler from functioning properly, leading to no heating or hot water.
Common Causes
- Blocked Flue: A blockage in the flue can prevent the necessary gases from escaping, causing ignition issues.
- Faulty Ignition Electrode: If the ignition electrode is damaged or malfunctioning, it may not create the spark needed to ignite the gas.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any gas or electrical issues, as these can be dangerous. However, you can check the boiler’s pressure and reset it if necessary, following the manufacturer’s instructions.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F25 fault could range from £150 to £300, depending on whether the issue is a simple reset or requires replacement of parts like the ignition electrode or flue components.