What does the Glow-worm Betacom F25 fault code mean?
The F25 fault code on a Glow-worm Betacom boiler indicates an ignition failure, meaning the boiler is unable to ignite the gas to start the heating process. This can lead to a lack of hot water and heating in your home.
Common Causes
- Faulty Ignition Electrode: The ignition electrode may be damaged or dirty, preventing it from creating a spark to ignite the gas.
- Gas Supply Issues: There may be a problem with the gas supply, such as low pressure or a blockage, which can hinder the ignition process.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any issues related to gas 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 an F25 fault could range from £100 to £250, depending on whether the ignition electrode needs cleaning or replacement, or if there are gas supply issues that require more extensive work.