What does the Ideal Mini F23 fault code mean?
The F23 fault code on the Ideal Mini boiler indicates a flame failure, meaning the boiler is unable to detect a flame during operation. This can prevent the boiler from heating water or providing central heating.
Common Causes
- Blocked Flue: A blockage in the flue can prevent proper ventilation, leading to flame failure.
- Faulty Ignition Electrode: If the ignition electrode is damaged or malfunctioning, it may not ignite the gas properly, causing the flame to fail.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any gas-related issues, including flame failure. Attempting to fix it yourself can be dangerous and may void your warranty.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F23 fault could be around £150 to £250, depending on whether the issue is a simple flue blockage or requires replacement of the ignition electrode.