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Old 01-08-2011, 11:57 AM   #1
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heater fan problem

I have a 99 jeep wrangler TJ, I was driving today and went to turn the fan down a notch on the heater and it completely shut off! The fan motor wont come on at all now. Any ideas? I'm cold! Please help!

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Old 01-08-2011, 12:22 PM   #2
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Quote:
Originally Posted by softtopmama View Post
I have a 99 jeep wrangler TJ, I was driving today and went to turn the fan down a notch on the heater and it completely shut off! The fan motor wont come on at all now. Any ideas? I'm cold! Please help!
If you don't even have high, it probably isn't the resistor pack. If you're lucky, it's just a fuse. More likely a melted switch. You'd have to pull it off and look at the back side to be sure. Ohming it out to be very sure (check resistance through the switch).

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Old 01-08-2011, 03:27 PM   #3
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Not sure they are the same, But I just did the Blower Resistor yesterday. 21 buck at the stealship, and fairly easy to replace. I still had hi speed but nothing on low
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Old 01-08-2011, 03:35 PM   #4
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I will check the fuse, thanks. Thanks gordo, I will also check that, one of the coldest days of the year here in Indiana, so my ole man isn't real happy about this. I just had no speeds! Thanks.
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Old 01-08-2011, 03:48 PM   #5
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Fan runs on low ONLY, fuse is fine. Help!
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Old 01-08-2011, 06:25 PM   #6
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Replaced blower relay still no change.....Runs on LOW only checked the resistir while we were in there and it tests good for continuity (??). I guess I'll have to get the switch pack for around $95 and hope that fixes it, only thing left after that if the blower motor itself has gone out (what are the odds of that ??)........
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Old 01-08-2011, 06:32 PM   #7
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My switch, that I adjust the speed with, would not turn/go down to low. I pulled knob straight off and pushed it straight back on. This seemed to fix it and now it adjusts the fan speeds the way it is supposed to. Just a thought.
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Old 01-08-2011, 06:37 PM   #8
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Have to replace the resistor (sp). Have the part, can't find it the location! I was told it behind the glove box, but can't locate, help!
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Old 01-08-2011, 09:52 PM   #9
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Have to replace the resistor (sp). Have the part, can't find it the location! I was told it behind the glove box, but can't locate, help!
The resistor was actually UNDER the heater box on the bottom. You first need to remove the hard plastic kick plate and then it's right there staring you in the face, literally. Just make sur that you only loosen the top 2 screws to remove the kick plate since the plate itself has a couple of slots and not really hole just the tension from the screws hold it in place at the top.

On screw was kinda tricky ....it was hiding BEHIND the plateat the top left corner. You can get it with a deepwell 1/4 drive socket (just need to loosen it) for the plate to slide off. When you see the connector for the resistor it will have a red locking clip attache that you have to pull straight back before it will unplug then 2 more screws and the resistor is out....
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Old 01-08-2011, 10:00 PM   #10
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Softopmama....

Your problem is most likely melted wiring/control box. Need to pull the box and check.

"""""to remove heater control box for inspection""""

Remove the defrost vent cover , pull up on the far side not the middle. pops right off.
Remove the ashtray. Open it and push down on the tab on the inside and slide out.
Remove the screw behind the ashtray.
At the top of the center bezel where you removed the defrost vent cover,,,remove the 2 screws that hold on the bezel. Pull the whole center bezel off..pull right off.
The heater/ac controls will have a few screws holding it on...take them off.
Poof your done. and can inspect the controls.

READ through this WHOLE thread. And the links in post #10.
CLICK ME---->>>>http://www.wranglerforum.com/f5/heat...rol-16174.html

If you have any more questions let us know.
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Old 01-08-2011, 11:08 PM   #11
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Got it changed! Actually only about a 10 - 15 minute fix. Thanks for the instructions softopmama. I actually found the instructions on jeep forum, however, they only mentioned 3 screws holding the kick plate. I didn't find the top right screw until it was to late, but don't know if I could of gotten to it any way, oh well. Wish I would have seen your post first! Thank you!
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Old 01-08-2011, 11:59 PM   #12
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Quote:
Originally Posted by distortedtj View Post
Softopmama....

Your problem is most likely melted wiring/control box. Need to pull the box and check.

"""""to remove heater control box for inspection""""

Remove the defrost vent cover , pull up on the far side not the middle. pops right off.
Remove the ashtray. Open it and push down on the tab on the inside and slide out.
Remove the screw behind the ashtray.
At the top of the center bezel where you removed the defrost vent cover,,,remove the 2 screws that hold on the bezel. Pull the whole center bezel off..pull right off.
The heater/ac controls will have a few screws holding it on...take them off.
Poof your done. and can inspect the controls.

READ through this WHOLE thread. And the links in post #10.
CLICK ME---->>>>http://www.wranglerforum.com/f5/heat...rol-16174.html

If you have any more questions let us know.
THANKS !!... Just a couple of quick ??, when prying up the top panel where is the best spot to prevent breaking off the mounting points ?? I know you said far side but Ididn't know which direction, toward the passenger side or towards the driver's side ?? Trying to be careful with the plastic in the cold. Any part #'s/specs for the relays mentioned in the How-To didn't notice anything other than them saying they went down to an electronics store and grabbed a few relays (??).

Ole man will want to fix it right the first time and not keep changing out burnt switches.
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Old 01-09-2011, 12:04 AM   #13
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Originally Posted by Wyominer View Post
Got it changed! Actually only about a 10 - 15 minute fix. Thanks for the instructions softopmama. I actually found the instructions on jeep forum, however, they only mentioned 3 screws holding the kick plate. I didn't find the top right screw until it was to late, but don't know if I could of gotten to it any way, oh well. Wish I would have seen your post first! Thank you!
That one hides pretty good behind the plate at the top. We were being extra careful since the plastic is so cold, so it took us a while to actually see it and then figure out how to get to it.
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Old 01-09-2011, 06:02 PM   #14
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Quote:
Originally Posted by softtopmama View Post
THANKS !!... Just a couple of quick ??, when prying up the top panel where is the best spot to prevent breaking off the mounting points ?? I know you said far side but Ididn't know which direction, toward the passenger side or towards the driver's side ?? Trying to be careful with the plastic in the cold. Any part #'s/specs for the relays mentioned in the How-To didn't notice anything other than them saying they went down to an electronics store and grabbed a few relays (??).

Ole man will want to fix it right the first time and not keep changing out burnt switches.
Either side...just not the middle.

30amp relays. Common in auto stores...look by the fog lights.

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Old 01-09-2011, 08:08 PM   #15
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Thanks ...He got it by using a putty scraper/knife. The problem was the fan speed switch on the climate control box. Didn't look melted though and neither did the connector (??). Put a new one in and everything went back to normal. Saving the link to the relay mod. though since he didn't really want to get into that till it got a bit warmer.
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Old 01-09-2011, 09:57 PM   #16
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Take it all apart, and put it all back together. That's what I went through and it started working its own. I think I have a bad ground but I have heat for now.
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Old 01-10-2011, 07:30 AM   #17
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If you do not replace the blower motor or do the relay mod, your new switch will not last long.
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Old 01-10-2011, 04:28 PM   #18
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Originally Posted by softtopmama View Post
Any part #'s/specs for the relays mentioned in the How-To didn't notice anything other than them saying they went down to an electronics store and grabbed a few relays (??).

Ole man will want to fix it right the first time and not keep changing out burnt switches.
Softopmama: When I did this mod:

http://www.wranglerforum.com/f5/writ...fix-52716.html

I used Pro Link SPDT40M relays. I got mine from thi website cheap:

PROLINK® SPDT RELAY WITH METAL BRACKET - DLCparts.com - DLC Parts -

Good luck!
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Old 11-13-2011, 10:11 PM   #19
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Originally Posted by distortedtj View Post
Softopmama....

Your problem is most likely melted wiring/control box. Need to pull the box and check.

"""""to remove heater control box for inspection""""

Remove the defrost vent cover , pull up on the far side not the middle. pops right off.
Remove the ashtray. Open it and push down on the tab on the inside and slide out.
Remove the screw behind the ashtray.
At the top of the center bezel where you removed the defrost vent cover,,,remove the 2 screws that hold on the bezel. Pull the whole center bezel off..pull right off.
The heater/ac controls will have a few screws holding it on...take them off.
Poof your done. and can inspect the controls.

READ through this WHOLE thread. And the links in post #10.
CLICK ME---->>>>http://www.wranglerforum.com/f5/heat...rol-16174.html

If you have any more questions let us know.
where can i find a replacement plug in the back of the climate control mine has melted
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Old 11-13-2011, 10:15 PM   #20
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Quote:
Originally Posted by marctn31 View Post
where can i find a replacement plug in the back of the climate control mine has melted
Only way is to make one. Or get a whole wire harness from jeep. $$$

Just use some covered spade connectors and your good.

But to correct the issue you will need to wire in relays and change the control box from the melted one you have now.

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