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Jan 30, 2018
Motorcraft OEM HVAC Blower Motor Resistor YH-1715 3F2Z-18591-AA
3 of 3 found this helpful Like so many, I lost the ability to adjust the blower fan on my 2011 Ford Escape after 6 years. Only the #4 (high) setting would work. The resistor card had failed. It's an easy fix, total time about 20 minutes. There're many instructional videos on how to replace it on YouTube. An 8mm socket wrench is needed.