Last spring my 2000 1500 van's heater/AC blower quit working except in the High speed position. I got a resistor pack from Dodge, installed it, and drove in cool comfort for a week until the same symptom occured. I went back to Dodge and they warranteed the resistor pack. I installed the new one and it lasted about three months (through June, July and August). Last week the same symptom presented itself. Did I get two bad resistors from Dodge stock or do I need a motor?
Has anyone had a similar experience?

 

Not sure where the resistor pack is but, I doubt you got two bad ones. You've got something else not working right that is causing too much draw or too much resistance. I'd start with checking for bad grounds and rubbed wires.