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Old 12-05-2009, 04:41 PM   #1
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Heat works, but I'm cold......

The blower in my daughter's 2000 Wrangler stopped working or at least that's what we think it may be. This was a sort of gradual degrade. It worked fine, then it stopped, then it would just start blowing without knowing if the control was left on and finally nothing. The heat works b/c you can feel it if you put
your hands near the vents, but no blower action. Is there an easy way to diagnose this w/o tearing out the whole dash? Could it be anything else?

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Old 12-05-2009, 05:16 PM   #2
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Could be as simple as a fuse. I replaced my fan speed resister which is a common failure, but I still had high fan. Another possibility is the speed control itself. Good luck.

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Old 12-05-2009, 07:41 PM   #3
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take out the center dash piece, the one around the radio and heater controls, its only held on by 3 screws and some clips. take the screws out and yank it out of there. take out the 2 screws that hold the heater controls in and pull it out. take a look at the connections on the back of it, they are VERY well known for melting and sometimes even causing fires.
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Old 12-06-2009, 10:23 PM   #4
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If it only works on High then you need to replace the Heater control unit, it looks like a credit card that fits under the Glove box. its abou 28 bucks, a real son of B to put in if you have big hands put fairly a easy fix. Just replaced mine this year it was 8 years old.
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Old 12-06-2009, 10:48 PM   #5
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Put on another jacket lol actually what they posted was about right
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Old 12-07-2009, 12:31 AM   #6
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Read over this thread bud.


http://www.wranglerforum.com/f5/heat...rol-16174.html

If you have anymore questions let us know.
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Old 12-12-2009, 11:17 PM   #7
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Thank you for advice. Still haven't identified defective components. Have complete access to fan control switch, resistor pack and blower motor relay. Believe fan control switch is faulty. Using Ohm meter, only red good across high. Resistor pack reads little or no resistance all terminals. Can feel relay making contact when plugging in, assuming its functional. At point where black and tan wires join along side green and pass over ductwork towards blower motor, read 12 volts at green wire. Dazed and Confused. Need
further assistance to identify faulty components. Is there anyway to jumper devices, need to identify fault. Fan will not operate. Can fan motor be faulty w/o blowing fuse?
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Old 12-22-2009, 05:23 PM   #8
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Hey all, turned out to be the heater blower motor. It was seized up tight. The thing that bites the most is that the manual tells that this is not a plug in item and to pretty much tear down the entire dashboard, ie., the dashboard in full, the steering column, everything to the firewall. Well if you're daring enough and willing to do all this to repair itself yourself,
you'll be happy to know that you only to take out the battery, remove the brain box and the blower is right there and it does plug in. So much simpler and much less time.

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blower , defrost , heater , no heat , vents

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