What does the Ideal Logic Max F87 fault code mean?
The F87 fault code indicates a calibration issue with the domestic hot water (DHW) temperature sensor in the Ideal Logic Max boiler. This fault can prevent the boiler from accurately regulating the temperature of the hot water supply.
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 disrupt its functionality and cause calibration errors.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for the F87 fault code is around £150 to £250, which includes the replacement of the DHW temperature sensor and any necessary wiring repairs. This cost reflects the complexity of the work and the need for a qualified technician.