What does the Ideal Mini F24 fault code mean?
The F24 fault code on the Ideal Mini boiler indicates an overheat condition, which typically means the boiler has detected a temperature that exceeds safe operating limits. This can lead to potential damage if not addressed promptly.
Common Causes
- Blocked Heat Exchanger: A build-up of debris or limescale can restrict water flow, causing the boiler to overheat.
- Faulty Thermostat: If the thermostat is malfunctioning, it may not accurately read the temperature, leading to overheating.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any issues related to gas or electrical components. However, you can check the pressure gauge and ensure it is within the normal range (typically 1-1.5 bar) and reset the boiler if necessary.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing an F24 fault could range from £150 to £300, depending on whether the issue is a blocked heat exchanger or a faulty thermostat. Cleaning or replacing the heat exchanger is generally more expensive due to labour and parts involved.