AC/Heater blower fan not working - Nissan Armada Forum: Armada & Infiniti QX56 Forums
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post #1 of 5 Old 01-28-2013, 07:51 AM Thread Starter
hernamf
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AC/Heater blower fan not working

I have a 2007 Armada with the split temp controls for driver and passenger. For some reason, my blower motor quit working. I have read the various threads and still not exactly sure how to proceed. The rear blower works fine. When I turn the knob on the dash, I do here a click in the area of the blower motor in the passenger foot area (under the glove box). Here is what I have done so far...

1. Checked the two 20A blower fuses under the hood and all fuses in the dash. They are ok.
2. I removed the blower motor and tested it with a battery. It spins.
3. I used a multimeter to check the voltage on the connector for the blower motor....NO VOLTAGE.

I assume I have a bad Variable Blower Control Module (27151-ZM70A). Is this the same as the resistor?...or is that a separate part?

Is there a blower switch or anything else that could fail?

Thank you in advance for your help!!!
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post #2 of 5 Old 01-28-2013, 09:59 AM
scr38
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The blower control module and the resistor serve the same purpose. (Early models had the resistor, later have the module).
It sounds like the module is bad.
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post #3 of 5 Old 01-29-2013, 11:07 AM Thread Starter
hernamf
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You're right. The module went bad. I purchased a replacement from my local dealer ($55) and that did the trick. Thanks!
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post #4 of 5 Old 04-26-2015, 08:38 AM
bodacious
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Quote:
Originally Posted by hernamf View Post
2. I removed the blower motor and tested it with a battery. It spins.
How do you do that?

My blower motor isn't working either. I bought a new one and that doesn't work. If I could test the old motor like you did, I could scratch that off as being a problem.

I thought the bad resistor only caused the fan to run on high at all times.
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post #5 of 5 Old 04-26-2015, 09:33 PM
bodacious
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What's This?

After buying a new blower motor, I plugged it in and that didn't work. My father and I put the tester to fuses and the connector--all is well. We tested the old motor, it works!!

Then we plugged in the old motor, and Dad grounded the old motor with the silver bolt on the side--it worked!! So, what is wrong with the motor??

Does the silver bolt have anything to do with it working/not working?

Do I need a resistor? The motor doesn't work at all.
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