2017 expedition el limited

[corey1979]

My 2017 expedition limited fans stay on high when I turn the car on can anyone help me please

 

[99WhiteC5Coupe]

My 2017 expedition limited fans stay on high when I turn the car on can anyone help me please

The HVAC blower motor speed control is probably defective. Replace it with an OEM Motorcraft part, and ensure you use a new pigtail connector in this TSB: https://static.nhtsa.gov/odi/tsbs/2019/MC-10163573-0001.pdf

This short video will help you also: https://m.youtube.com/watch?v=42Ae37Zx90E