Depending on your car year it may be covered under a recall as the fan resistor seems to go out letting to much current get to switch. I had this problem in my 96 contour gl. The resistor was on fire wall but was accesible by removing glove box. I also had trouble with the wiring from the switch to the resistor as the wires were also frayed from being overheated. As I said earlier this was all covered under recall. Good luck and I hope I was some help.
