Hello folks. This is my first post to this forum. Thanks in advance for the help.

It's getting a little cooler in NY and yesterday my wife (usual driver of the Durango) tried to use the heat for the first time in some time. She noticed that the heater-A/C fan only blows when turned to the high setting. I tried the fan with the A/C and the same thing happens. All works fine on high. When using A/C, the A/C light comes on when the fan is on High, but, when the fan is set to any other setting the fan and the A/C light go out.

Another thing that may be related, or may be a coinciedence, is the heated seats are not heating. The little lights in the high/low switchs work fine. Not sure when they stopped working since we haven't tried them in some time.

I inspected the fuses in the dash and in the engine compartment, and all seems to be well. Not sure where to look next.

Any help would be most appreciated.

Alex

 

You need a new blower motor resistor block.
It is located at the blower motor connector under the dash.
If you don't know where that is, turn the fan on (high, of course) and listen for the fan noise.
Where the wires plug into the blower motor you will see a connector. Unplug it, remove the two phillips head screws and replace the block.
You can get a new one at your local Dodge parts dept.
I suggest you buy it first, so you know what you're looking for.

 

Thanks for the very rapid response. Based upon your answer it doesn't appear that the heated seats would be related.

Any way to test the removed motor resistor block to be sure it's the problem?

Alex

 

Check for continuity between each of the
blower motor switch input terminals of the resistor
and the resistor output terminal. In each case there
should be continuity. If OK, repair the wire harness
circuits between the blower motor switch and blower
motor resistor or blower motor as required. If not
OK, replace the faulty blower motor resistor block.



I would almost guarantee that the resistor block is bad. 99.9999999% chance that this is the cause.

And, yes, you are correct that this would have no effect on the heated seats.

 

Thanks. I'll give it a shot this weekend.

Alex