What does the Ideal Logic Max F84 fault code mean?
The F84 fault code indicates a calibration error with the central heating (CH) temperature sensor in the Ideal Logic Max boiler. This issue can prevent the boiler from accurately regulating the heating system, leading to inefficient operation.
Common Causes
- Faulty Temperature Sensor: The sensor may be malfunctioning or damaged, causing incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can lead to calibration errors.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and safety risks. Attempting to fix it yourself may void warranties or lead to further complications.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty CH temperature sensor is around £150 to £200, including parts and labour. This cost reflects the price of the sensor and the expertise required for safe installation.