How to fix Ideal Logic Max fault code F68

What does the Ideal Logic Max F68 fault code mean?

The F68 fault code indicates a malfunction with the central heating (CH) temperature sensor in the Ideal Logic Max boiler. This sensor is crucial for monitoring the temperature of the water in the heating system, and its failure can lead to inefficient heating or system shutdown.

Common Causes

  • Faulty Temperature Sensor: The sensor may be defective or damaged, leading to incorrect readings.
  • Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer to diagnose and repair the issue, as working with gas appliances can be dangerous. Attempting to fix electrical components without proper training can also 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. This includes the cost of the part and labour, as sensor replacements typically require professional installation to ensure safety and compliance with regulations.