What does the Ideal Logic Max F71 fault code mean?
The F71 fault code indicates a calibration error with the domestic hot water (DHW) temperature sensor in the Ideal Logic Max boiler. This error suggests that the sensor is not accurately reading the water temperature, which can affect the boiler’s performance and efficiency.
Common Causes
- Faulty DHW Temperature Sensor: The sensor may be malfunctioning or damaged, leading to incorrect temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the temperature sensor can cause communication errors, resulting in the F71 fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair 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 resolving the F71 fault code is around £150 to £250, primarily due to the potential need for replacing the DHW temperature sensor and any associated wiring repairs.