A/C drain and blower issues - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 3 (permalink) Old 06-23-2015, 11:55 AM Thread Starter
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A/C drain and blower issues

2006 commander. Last year, we noticed water sloshing behind the glove box and dripping on the passenger floor board. My online research revealed that the drain hole can get clogged or covered by a coin that makes its way from the dash-top vents down to the drain hole and that the onliest was to remove the water without dropping the transmission is to drill a hole on down by the passenger floor board to allow the water to come out. sure enough, there appears to be a penny in there preventing the condensation from draining out. based on my last two drainings, the duct sytem can hold close to 30-40 ounces of water.

Also, my blower fan quit working this week. I'm concerned that accumulated water the water in the ducts has caused a problem with either the blower motor or the resistor. Where do I locate the motor and resistor, and what all has to be removed from the dash to access them?

While i'm dealing with the fan problems, I'd like to get the penny out of the drain, but have no idea what all would need to be removed from the dash to get to the fixture holding the penny. any ideas?


thanks in advance.
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post #2 of 3 (permalink) Old 07-07-2015, 11:18 PM Thread Starter
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Found the resistor. Stopped at local autozone to get replacement on my way home from work ...$10.80 out the door....or so I thought. Got home, pulled the old and grabbed the new...only to find out that the new was a different design. Back to the store I go....correct replacement was $95.99.......and had to be ordered, should be in tomorrow morning.

Now I'm wondering what I'm gonna do if the resistor isn't the problem and the motor's gone bad.

How can I test the motor without removing it?

If the motor is bad, how do I replace it?

Thanks in advance.
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post #3 of 3 (permalink) Old 07-08-2015, 09:05 PM
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Join Date: Mar 2014
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Model year: 2008
Trim Package: Overland
Power-Train: 5.7L V-8 Hemi
4WD
If 4WD - system: QD-II
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Can I assume you have the auto HVAC? Usually if you have a resistor, you have the auto system.

Looks like 2 wires going to the blower motor, there is a connector you can apply 12v to the motor to test it. Black wire is the ground side.

Check your fuses as well. I believe there is a relay as well.

Does it work on high? or not at all?

Do you have the service manual? You have to remove the instrument panel and the glove box to get to the blower motor according to the service manual.
There is a guy on here that has had the panel apart, hopefully he will chime in.


Possible causes of an inoperative blower motor include:
Faulty fuse
Faulty blower motor resistor or power module (depending on application)
Faulty blower motor switch
Faulty mode control switch
Faulty blower motor
Faulty blower motor circuit wiring or wire harness connectors
Possible causes of the blower motor not operating in all speeds include:
Faulty fuse
Faulty blower motor resistor or power module (depending on application)
Faulty blower motor switch
Faulty blower motor
Faulty blower motor circuit wiring or wire harness connectors

08, Commander, Overland, 5.7L HEMI, QD-II, Stock.

Last edited by vjsimone; 07-08-2015 at 09:47 PM. Reason: Addinginfo
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