What does the Ideal Logic Plus F66 fault code mean?
The F66 fault code on the Ideal Logic Plus indicates a problem with the flue gas analysis, which suggests that the boiler is not operating efficiently or safely. This issue can lead to improper combustion and may pose a risk if not addressed promptly.
Common Causes
- Blocked Flue: A blockage in the flue system can prevent proper venting of exhaust gases, leading to incorrect readings during gas analysis.
- Faulty Flue Gas Sensor: A malfunctioning sensor may provide inaccurate data regarding the combustion process, triggering the F66 fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be dangerous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F66 fault code is around £150 to £250, depending on whether the flue is cleared or the sensor is replaced. This cost reflects the need for professional expertise and potential parts replacement.