Odd heater issue. - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-05-2013, 10:09 PM   #1
Jeeper
 
valgerth's Avatar
 
Join Date: Dec 2012
Posts: 25
Odd heater issue.

So I noticed something during the winter/early spring when I was offroading, and wondering if anyone had ever seen this or had any ideas what it might be. After I had been driving/offroading for a while, one of the times I'd turn on the heat, and no matter what it was turned to it came out as window defroster setting. I have a tendency to turn the heat on and off when the top is down and it's a bit more chilly depending on how fast I'm going (and related:how cold the front is). Everytime this happened I would try turning it on and off and fiddling with how strong it was blowing and eventually it would start working correctly. Any ideas?

valgerth is offline   Quote Quick Reply
Old 05-05-2013, 10:21 PM   #2
Jeeper
 
jeepsrgreat's Avatar
 
Join Date: Aug 2012
Posts: 312
Start looking for a vacuum leak. The controller that operates where the air comes out is vacuum actuated. It has a fail safe to defrost.

__________________
Jeeps are like Lego: Make it any way you want it, break it and start over again.
jeepsrgreat is offline   Quote Quick Reply
Old 05-05-2013, 10:27 PM   #3
Newb
 
Webbo's Avatar
 
Join Date: Mar 2012
Location: Chester County, PA
Posts: 7
I had a similar issue with mine this winter, heat would only work as defrost. Turns out my knob was cracked and the switch was trapped in between settings. Pull the knob off and check the back and see if its cracked. If it is, it's a $6 part, worth checking.
Webbo is offline   Quote Quick Reply
Old 05-05-2013, 11:12 PM   #4
Jeeper
 
thgr8alex's Avatar
 
Join Date: Dec 2012
Posts: 1,639
Not to hijack but instead of creating a new post, i too have a heating issue. Mine only works on the full blast setting. The first 3 settings for how strong it is dont work. Only the 4th and strongest setting works. Im guessing a blown fuse? Idk.. Not terribly worried since its warming up but a good time to fix for the winter haha
__________________
1998 Jeep Wrangler, 4.0 I6
33x12.50 Goodyear Wrangler Duratracs
3 inch Zone suspension lift, Rubicon Express adjustable front track bar, 1.25 inch body lift.
thgr8alex is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 07:16 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC