I hope this is the best place to post this question. I have a 2000 ram 2500 cummins. My heater resistor for the blower fan heated up and almost started a fire about six months ago. Replaced the resistor and everything was fine until a few days ago. It heated up
again and started smoking. So now the fan only works on hi. I bought another resistor but it also started getting hot so I unplugged it. Traced the wires and nothing seems to be touching or bare. Any ideas??

Thanks in advance.

 

sounds like what is happening to mine.

probably time to replace the blower motor.

mine I can hear the fan contacting the housing every now and them and not blowing as hard as it used to.