strange A/C operation?
Thread Starter
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Junior User
Joined: Feb 2009
Posts: 82
Likes: 0
strange A/C operation?
hey gentlemen, so 2005 f-250 auto with the 5.4l. if i have the temp selector on cool and the vent selector on the defrost or defrost and vent setting the a/c condensor engages but not on any other setting and works normaly when i actually turn the dial to A/C and it blows from the proper vents, anyone else experience this, know if this is normal or if there is a cure? thanks guys.
Tuned
Joined: Apr 2009
Posts: 394
Likes: 1
From: DFW
Exactly, they figure that if you need defrost then there is too much
moisture in the cab....
It doesnt really help if you are really trying to de-frost (melt the ice
from your window) because it cools the air even more... BUT, I think
there is a temp limit where the compressor wont turn on (too cold)..
moisture in the cab....
It doesnt really help if you are really trying to de-frost (melt the ice
from your window) because it cools the air even more... BUT, I think
there is a temp limit where the compressor wont turn on (too cold)..
Thread Starter
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Junior User
Joined: Feb 2009
Posts: 82
Likes: 0
thanks for the replys guys, something still seems strange. i have tried all the settings and the a/c runs on all settings except the dash vents so i cant just have the air circulate without the a/c on and also seems to defeat the purpose of having an a/c setting. i was hoping to increase the mpg a little but then again the designers have the heated mirrors on all the time too. i still like my garden tractor more than the truck haha.
Elder User
Joined: May 2004
Posts: 812
Likes: 1
From: Northwest Florida
I think I know what your saying.....that you can't turn the AC off excpt in the vent position. I too would rather have a separate controll for the compressor. I'd install one, but don't know the wiring well enough. Anybody out there know???
Elder User
Joined: May 2004
Posts: 812
Likes: 1
From: Northwest Florida
Yup, according to my 150's owner's manual it's by design. I just figure the rest are supposed to be the same, 'cause they are!
Still like to hear from somebody how to wire in a cut-out switch.
Still like to hear from somebody how to wire in a cut-out switch.
