What does the Ideal Logic Max F100 fault code mean?
The F100 fault code indicates a calibration fault with the central heating (CH) temperature sensor in the Ideal Logic Max boiler. This issue can lead to inaccurate temperature readings, affecting the boiler’s performance and efficiency.
Common Causes
- Faulty Temperature Sensor: The sensor may be malfunctioning or damaged, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can cause communication problems with the boiler’s control system.
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 could lead to further damage or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the CH temperature sensor is around £150 to £200, including parts and labour. This cost reflects the typical price for sensor replacement and associated diagnostics.