My Heater and Ac fan only works on High


Asked by Apr 02, 2012 at 09:38 PM about the 2001 Dodge Durango Sport 4WD

Question type: Maintenance & Repair

When I turn my switch on for the fan on the heater and Ac it only works on full blast.

6 Answers


sounds like a resistor switch is bad to me

11 of 11 people found this helpful.

Where is the resistor switch located?

22 of 22 people found this helpful.

the resistor block as it is called is usually located in the A/C blower box on the passenger side firewall under the hood . It wil lhave a spade terminal connector with about five or six wires going to it . unless they changed where they put it , but that is where it used to be

10 of 10 people found this helpful.

Chances are if the resistor is bad the plug and blower motor are the cause. High resistance in the motor causes the resistor to usually burn out.

5 of 5 people found this helpful.

yes this is the resistor, it is located under the dash on the pasenger side, very easy to get to. Be sure to get a new resistor with the pigtail so you can change the end of the wire that connects to the resister, it is a better version with heat shield, chances are that your wires next to the plug are gone bad to.

14 of 14 people found this helpful.

And I dont thin it is the motor if it is running fine on full blast. These resistors are known to go in the Durango but not the blower motor.

11 of 11 people found this helpful.

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