Under normal circumstances when the resistors fails, the highest speed should still work as it is a direct link to ground. However sometimes the circuit can go bad too and under such circumstances, the blower would not work in all positions.
April, 11, 2010 AT 8:47 PM
I replaced it and all is well. I guess mine was really shot.
April, 12, 2010 AT 9:03 AM
Nice to know you have fixed your problem and thank you for the input.