A/C Fan Problem

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A/C Fan Problem

Postby 04rex - August 21st, 2011, 1:05 pm

Hello, I am new to this forum. I am having an issue with my 2008 Ford Escape XLT. It seems that my A/C and Heater fan isnt working properly. Basically, air only comes out when i put the fan speed to 4. With 1-3, no air comes out. If the A/C or Heat is on, I can feel cold air or heat coming out but the actual fan isnt running. It only runs when it is set to 4. Anybody know what the problem could be?

Thanks!
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Re: A/C Fan Problem

Postby Mantruck101 - August 21st, 2011, 1:06 pm

It sounds like your blower motor resistor croaked.
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Re: A/C Fan Problem

Postby 04rex - August 21st, 2011, 1:14 pm

Would that be difficult to fix myself?
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Re: A/C Fan Problem

Postby Mantruck101 - August 21st, 2011, 1:38 pm

If you are somewhat handy, you should be able to do it yourself. I had the same problem in a former vehicle and was able to replace the defective part in under an hour... most difficult part was getting access to it.

Hopefully someone will chime in with more knowledge, but I believe the part you need to replace is somewhere behind the glovebox above the front passenger footwell. It should just be a couple of bolts and one connector once you know how to access the defective component. I don't believe you'll need anything more than some basic hand tools. IIRC, the part should only be around $30 too. Here is another thread from another board member with the same problem:
viewtopic.php?f=8&t=9666&hilit=blower+motor+resistor

Finally, here is a thread for a TSB for replacement the blower motor resistor in Hybrid models.
viewtopic.php?f=24&t=1236&hilit=blower+motor+resistor
NOTE: I believe all 2008+ Hybrid models came with EATC (Electronic Automatic Temperature Control) which your XLT does not have. Therefore, the part numbers in this thread are probably not correct for your application. However, I would imagine that the location of the blower motor resistor is the same between Hybrid/ Non-Hybrid models.

If I were you, I'd pull the old blower resistor out and get the part # off of it to be sure I was buying the correct replacement component.

Hope this helps.
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Re: A/C Fan Problem

Postby jkrywalski - July 1st, 2013, 5:36 pm

You'll need a 5/16" socket, a quarter inch drive.
Open glove box door, squeeze sides to allow bumpers/stops to exit cavity.
You do not have to remove the door to access the resistor.
In center of cavity, you'll see a connector with 4 wires coming out of it.
Press in front center of UPPER section to release connector.
Use the 5/16" socket to unscrew the 2 screws holding the resistor in place.
Slide the resistor UP.
You'll notice a small raised section on the bottom of the flat area, this is normal. Any other raised sections indicate a burned section.
Now is the time you curse the engineer who decided to go with a PC board type of resistor instead of conventional resistors that cost pennies to replace.
Dealer wants about 35 bucks, but you can find them on E-BAY for about 20 bucks with free shipping.

If this answers your question, have a beer on me.
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Re: A/C Fan Problem

Postby Ecovan150 - July 2nd, 2013, 2:18 pm

agreee motor resistor my friend, fix it and then you r cool :frozen:
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Re: A/C Fan Problem

Postby MikeWil - September 5th, 2013, 8:03 pm

I don't mean to high jack the thread, but, here I go.
I read this thread and many others.
My problem seems a little different.
The fan is working intermittantly.
I was driving the other day and it wasn't working. I had it on high.
Just when I was turning the ignition off the fan blew for just a second before the key was off.
Sometimes it blows and sometimes it doesn't. (at any fan speed)
I took out the blower motor resistor and it has no bumps other than the one that is suppose to be there.
Do you think this is still the blower motor resistor or do I have something else going on?
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Re: A/C Fan Problem

Postby Ecovan150 - September 5th, 2013, 8:21 pm

in my opinion check short on the system cables or contunity on fan motor
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Re: A/C Fan Problem

Postby MikeWil - September 5th, 2013, 8:37 pm

I'm pretty ignorant about this.
How do I do that???
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Re: A/C Fan Problem

Postby tomw - September 6th, 2013, 10:35 am

I would check the connector that sends power to the blower motor. Also check for voltage being consistently present there. If it is, then pull the blower motor & blower wheel assembly, and check the brushes. If voltage is not present all the time, check the connection behind the glovebox where the resistor assembly is located, again, for constant power. If it is there, I'm lost. If not, check the switch on the control head connections and power. You are trying to find out if power is available all the way to the blower motor all the time, or if there is an intermittent interruption in flow from the source.
Measuring with a VOM or DVOM would tell you the resistance or 'open' of the resistors, and the resistance through the brushes & windings of the blower motor. Measure across the ground and power leads that feed into the blower motor. If there is an open, the motor will not run. There should be some resistance.
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