Weird AC problem

[rendos]

I replaced my AC blower motor and motor resistor because my fan would intermittently stop blowing. Well then the fan wouldn't blow at all. I checked and it was getting power but the squirrel cage did not spin. Then by accident, I touched the fan housing against the body of the truck and the squirrel cage started spinning. It has been working ever since. Any idea why that worked?

 

[rendos]

I guess the ground that was on the motor wasn't really grounded. I added a ground wire to the fan motor and now it is working great.

 

[SunlitComet]

Still check to make sure your grounds on the fender well behind the battery are clean as well. The motor grounds thru it after going thru a connector near the blower motor.