What should I check if the fan motor on my heater only seems to work on high? 2003 Ford Expedition 5

goose6969

What should I check if the fan motor on my heater only seems to work on high? 2003 Ford Expedition 5

Mr_Shiftright

This link discusses the same problem with a bit earlier Expedition, but the general principles and solution should be the same, even if the diagram might not apply directly to your car's fan motor. I agree with the diagnosis in the link:

https://www.justanswer.com/ford/1nzy9-ford-expedition-1997-fan-blower-switch-works.html