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Defroster/AC question Defroster/AC question
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  #1  
Old 10-19-2009, 12:25 PM
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Join Date: Oct 2009
Location: Virginia
Vehicle: 1993 Ford F150
Posts: 15
Defroster/AC question
question - Should the AC compressor come on when I have my defroster on?

Currently when I have my selector knob on anything other than vent my AC compressor comes on. When i have it on vent it warms up nice but when I have it on defrost or floor it does not get warm..

If this is not correct what could cause this?


Also my AC works and works very well.


I disconnected the Plug on the AC compressor and the Defroster warms up better now.

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  #2  
Old 10-19-2009, 09:16 PM
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Location: NW Indiana
Vehicle: 1998 Ford Expy 5.4
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lmao.... the AC kicks on cause its better to defrost you windows with cold air than it is hot air.... extreme heat to a FROZEN window will crack it...
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Swapped 5.4. . . cause 4.6's are only good for taxi's and boat anchors. . .
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  #3  
Old 10-20-2009, 01:44 PM
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thanks for the help
Last edited by 19934X4; 10-21-2009 at 08:07 AM. Reason: Edited due to having a bad day when i posted originally
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  #4  
Old 10-20-2009, 10:07 PM
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i was laughing cause when i first learned the AC was on while defrost I was confused too....
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the Lead sled

Swapped 5.4. . . cause 4.6's are only good for taxi's and boat anchors. . .
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  #5  
Old 10-21-2009, 03:15 AM
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Join Date: Dec 2005
Location: Tenn.
Vehicle: 2006 Ford F-150
Posts: 229
The compressor needs to come on in defrost because thats how you get dry air to defrost or defog. Because it is dry you may need to up the temp a little to get more comfortable. I think there is a setting where you can split between floor and defrost too.
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  #6  
Old 10-21-2009, 08:07 AM
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Join Date: Oct 2009
Location: Virginia
Vehicle: 1993 Ford F150
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Quote:
Originally Posted by Camarothatcould View Post
i was laughing cause when i first learned the AC was on while defrost I was confused too....
again thanks for advice and sorry for last post i was having a rough day at work.
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