What does the Ideal Logic Plus F25 fault code mean?
The F25 fault code on the Ideal Logic Plus 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 or heating in your home.
Common Causes
- Blocked Flue: A blockage in the flue can prevent the boiler from venting properly, leading to 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 working on these systems can be dangerous. However, you can check the boiler pressure and reset the boiler if it is low or has locked out.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for an ignition electrode replacement is around £120, including parts and labour. This is based on the typical cost of the part and the time required for a qualified engineer to complete the repair.