Hi all

I only have one speed (maximum speed) on my heater fan in the car. The heater motor seems fine, the air id nice and hot so I ve come to the conclusion that its the resistor that is dead. Any ideas where I can find one ??? Or any ideas how I can adapt one from another make or model ?
this is what mine looks like :

 

It s ok I ve found a solution I think by simply changing the thermal fuse... I ll tell you if I manage to get it to work properly.

 

If the fan motor bearings get a bit dry, it slows the fan down. The resistor pack is cooled by the airflow. When the fan runs too slowly, the thermal fuse blows which shuts it off. Full speed is not affected as the resistor pack is out of circuit. I think the main problem with these is age and the fact that the fan runs really slowly even when the switch is off. The slow speed only stops when the air control lever is fully down.

Where did you get the thermal fuse from? I replaced mine about a year ago but it's blown again.

 

Yes that was my line of thought about why they go bad. I m planning on dismantling the motor to give it a check and lube.
I found the fuses on amazon (surprinsingly enough) and order the closest thermal rating I could find ( 125 degrees).