Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum > heater and this burnt smell

Join Wrangler Forum Today


Thread: heater and this burnt smell Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
12-04-2012 12:33 PM
jksport12 I just went through a similar problem with my heater. I tore apart the dash and saw someone previously had removed the electrical plug from control side and wired the wires into themselves directly. I could see why they did this. The plug must have melted so they just got rid of it. I went back and replaced the resistor, fan speed switch, and redid the wiring on the control side. Now it works like a champ. I am going to test the amp draw from the blower motor to see if it's drawing too many amps. If so I will replace the blower. This is a pretty common problem and there are fixes.

Blower Motor Relay Walk Through - JeepForum.com

This link shows how to wire in seperate relays to control the amount of amps drawn and reduce heat to prevent melting. I haven't yet done this but will after checking out the blower motor.
12-04-2012 06:24 AM
kpla51
Quote:
Originally Posted by ohioviper
Your gonna need a blower motor and possibly a resistor or the new switch will get fried like the old one.The reason it is melting is because the blower motor is dragging and pulling to many amps.
The switch wasn't melted I believe the switch just was faulty
12-03-2012 11:54 PM
ohioviper Your gonna need a blower motor and possibly a resistor or the new switch will get fried like the old one.The reason it is melting is because the blower motor is dragging and pulling to many amps.
12-03-2012 10:24 PM
kpla51
Quote:
Originally Posted by ohioviper View Post
Just replaced the heater /ac control nob in my sons and the plug was literally melted to the switch. Put in new switch and new blower motor and new fan switch now all is well. Advanced auto parts had them in stock or you could get them online from rock auto or amazon.

Amazon.com: Jeep Wrangler TJ 99-04 Heater/AC Vacuum Switch Mopar: Automotive

Amazon.com: Jeep Wrangler TJ 99-04 Heater/AC Fan Switch,OEM Mopar: Automotive
i just ordered them lets hope it works the vacuum switch was making funny sounds and had parts shaking in it so i got the one you posted
12-03-2012 07:01 PM
kpla51
Quote:
Originally Posted by ohioviper
From what I have read yes it is very common. Odds are the blower motor is bad and drawing too high a load and melting everything.
Did some snooping and when I turn the control knob for different setting it makes a sound out of the switch similar to when you push air out of a zip lock and sometimes a slight clunk by the blower motor
12-03-2012 06:13 PM
UnlimitedRubicon
Quote:
Originally Posted by kpla51 View Post
How much do they run

mopar motor - ~$80
mopar resistor - ~$16
12-03-2012 02:39 PM
kpla51
Quote:
Originally Posted by ohioviper
From what I have read yes it is very common. Odds are the blower motor is bad and drawing too high a load and melting everything.
So would I just disconnect the old one and put a new one in? How much do they run
12-03-2012 01:31 PM
ohioviper From what I have read yes it is very common. Odds are the blower motor is bad and drawing too high a load and melting everything.
12-03-2012 11:31 AM
kpla51 Thanks I'm taking the dash appart today is this a common thing?
12-03-2012 10:34 AM
ohioviper Just replaced the heater /ac control nob in my sons and the plug was literally melted to the switch. Put in new switch and new blower motor and new fan switch now all is well. Advanced auto parts had them in stock or you could get them online from rock auto or amazon.

Amazon.com: Jeep Wrangler TJ 99-04 Heater/AC Vacuum Switch Mopar: Automotive

Amazon.com: Jeep Wrangler TJ 99-04 Heater/AC Fan Switch,OEM Mopar: Automotive
12-03-2012 10:25 AM
6rings Check your resistor, it's down under dash / glovebox side, mine had leaves in it ...burnt it up had to replace it then all was good!
12-02-2012 11:04 PM
kpla51
heater and this burnt smell

so a few weeks back i was smelling this electrical burning smell in my cab while off roading it went away as soon as we stopped then took it out again this weekend and i lost all controls to my heater. when i turn the control knob for the different settings i get nothing. i checked all the fuses and they were good. it gets cold here in the mornings so all the help would be awesome.

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


All times are GMT -5. The time now is 04:44 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