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-   -   Defrost button... does it just turn on the AC? (http://www.ramforumz.com/showthread.php?t=132267)

BoosTT 01-30-2013 01:36 PM

Defrost button... does it just turn on the AC?
 
What exactly does the defrost button do? Does it turn on the AC compressor when I have the heat on the floor (I think if heat is directed towards the windsheild it automatically turns on the AC compressor).

RamTech 01-30-2013 01:41 PM

Yes, the A/C will kick on and the mode door will move to the fresh air position. This is to dehumidify the cab.

CRANKYPISTOL 02-02-2013 10:40 AM

Also it is your heated mirrors if you have them.

newfiebullet 02-02-2013 02:03 PM

thats the rear defrost button, you push that and it defrosts back window and mirrors...love the mirror option

huntergreen 02-05-2013 07:39 PM

in my truck i turn the knob for defrost.

newfiebullet 02-06-2013 05:29 AM

ya same here but rear defrost and mirrors are the button you have to push in on

BoosTT 02-06-2013 12:28 PM

Do you have lines in your rear window for defrost? I don't have any lines, but I have the button. ???

newfiebullet 02-06-2013 04:06 PM

ya same here i have no lines...but my window clears off after a while so something must happen lol

Kai2k1 02-06-2013 06:06 PM

Quote:

Originally Posted by newfiebullet (Post 1004753)
ya same here i have no lines...but my window clears off after a while so something must happen lol


I think your cab is warming up lol...

Rescue1 02-08-2013 06:46 AM

I think they should start calling it the DEFOG vs DEFROST as yes, it will melt some of the front on the outside of the windshield, but most of the time you use it to defog the inside. You need dry air in order to do that, hence why the A/C turns on...:smileup:


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