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Old Jun 17, 2005 | 12:10 PM
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Question a/c always on

Hi all,
Just returned from Baja,mexico,a/c worked fine but now it's always on,no matter where the dial is set.
Truck is under warrenty but I hope to avoid being without it for several days for a possibly easy fix.
any ideas?
Thanks,
Steve
 
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Old Jun 17, 2005 | 12:12 PM
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oops

Forgot--- 2004 f250 6.0l diesel 4x4
 
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Old Jun 17, 2005 | 01:51 PM
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the only positions that the compressor will not run are, vent (dash) only, and floor only. it will run in all other positions
 
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Old Jun 17, 2005 | 03:58 PM
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Mine does the same thing, all positions even vent!
 
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Old Jun 17, 2005 | 04:00 PM
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Steve, please post the fix when you find out , mine is not under warrenty, thanks!
 
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Old Jun 17, 2005 | 06:17 PM
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I thought I was going nuts. Thanks for the insight. I use the little known position called "OFF" and it stops it everytime.
A/C on all the time. I think that is what they call a "feature" and it is "working as designed". That is what I tell customer that call in for tech support on the computer systems that I support.
 
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Old Jun 17, 2005 | 06:21 PM
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Yes, I was told by the Ford mechanics at the dealer that AC is always on except when the switch is in the off position. For what it is worth.
 
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Old Jun 17, 2005 | 06:27 PM
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Wow, is that right? I've never heard that one before! Is everyones operating like this?
 
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Old Jun 17, 2005 | 06:29 PM
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maybe they changed it on the newer trucks, what i stated in my previous post is what it says in my manual...dono
 
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Old Jun 17, 2005 | 08:25 PM
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So there is no way to have fresh outside air through the vent without the AC? I thought only when the **** was turned to the left was supposed to be AC, but I noticed the air is colder than the ambient air even when the **** is turned to the right.
 
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Old Jun 18, 2005 | 06:33 AM
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In 03 the compressor would disengage in the vent, floor heat, and the off positions. I wouldn't think the compressor would run in the vent postion. Check your owners manual. It may have somthing in there about the compressor operation.
 
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Old Jun 18, 2005 | 06:55 AM
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The AC light (Compressor) is always on when the temperature is above 38 degrees Fahrenheit and the climate control is not set to off. When the temperature drops below 38, you shouldn't see the AC light on anymore. This can be misleading because the compressor will still run in the defrost mode. I have seen this vary between the '01 and '05 models years.
 
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Old Jun 20, 2005 | 08:20 PM
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Originally Posted by billbain
Wow, is that right? I've never heard that one before! Is everyones operating like this?
NOT MINE.....OFF is off.
 
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Old Jun 20, 2005 | 08:47 PM
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Originally Posted by Medic 66
NOT MINE.....OFF is off.
That is what I stated in my above post. Compressor working EXCEPT when in the off position. This is what the Ford mechs said anyhow.
On my way home from work tomorrow I will turn on my heater and set the temp setting to cold just to see what happens.
 
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Old Jun 20, 2005 | 10:18 PM
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My 86 runs in all positions other than off and vent.
The heater control is now and has been for many years called the climate control.

If it is working correctly, in theory, you could set it at a position that is comfortable and drive from someplace 100 degrees to someplace 20 degrees and never touch the controls.

But as all things generally are, it does not work exactly like that.
 
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