ac/heater fan speed switch

[bradc344]

Hello I posted earlier about my problem with my ac/heater fan not working at all I put in a new resistor and it will work on high only not sur what to replace now the switch is all so new do you think replacing the fan motor would help? I had it out and it turned freely any ideas thanks Brad

[Cubflyer]

My experience with those fan motors is that the speed that they run at (low, Med, Hi) is controlled with the resistor by changing the voltage supplied to the motor. 

So, my guess here is that the problem is in the circuit, not the fan motor.

[klcdenver]

Did you match the number of terminals and orientation to the old resistor. Some times they are not the same but the plug will still fit the resistor. But usually when you have only high it is the resistor. Pull it out and see if one of the coils have burnt into. 

[Keamyinc]

Hi Brad, I’m wondering if you ever got your fan working on all settings? I have the same problem and need to attack it. I’m wondering what you found out that you can share.Thanks Don

[bradc344]

yes I did but had to jump relay ignition one to get it to work for some reason I dont have any power to that relay work fine just have to turn the system off withe dash switch. still working on a solution but for now it works fine 

did you check your resistor if it work on high speed only then it might be the resistoryou can get them on amazon for $18.00 Napa want $50.00 go figure good luck