What does the Ideal Mexico HE F64 fault code mean?
The F64 fault code on the Ideal Mexico HE indicates a fault with the central heating (CH) temperature sensor. This typically means that the sensor is either malfunctioning or has failed, preventing the boiler from accurately monitoring and regulating the heating system’s temperature.
Common Causes
- Faulty Temperature Sensor: The sensor may have developed a fault due to age or wear, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality and cause the fault code to appear.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be hazardous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing the CH temperature sensor on an Ideal Mexico HE is around £150 to £200. This includes the cost of the part and labour, reflecting the typical rates for a qualified engineer in the UK.