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Old Dec 19, 2020 | 02:31 PM
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AC issues

2012 F250 with 6.2 gas engine.
Are these renowned for having problems with the A/C unit?
This summer, I noticed the AC wasn't cooling as well as it did last year so I chalked it up to having lost its charge.
Over the last month or so (when it gets chillier at night), when I start it up in the cold mornings (38 - 40F) I notice the compressor is a bit noisier than normal AND it seems to be involved in the heater-process somehow.
If I shut OFF the heating (using the OFF button) then the compressor doesn't engage and things are a lot quieter under the hood.
My old GM used to cycle the A/C compressor when the heater was running....used to drive me nuts...why run the compressor when I'm trying to HEAT? I used to disconnect it during the winters and things were a whole lot quieter that way.
Is it possible to do the same with the compressor on my F250? I can't even see where it is under the hood....
 
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Old Dec 19, 2020 | 07:05 PM
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The compressor will run if defrost is selected. Are you sure you are not confusing the defrost/heat selection?
 
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Old Dec 19, 2020 | 09:31 PM
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I'm pretty sure it's noisy under there, regardless of what selection is made, but the question remains: Why run the compressor?

 
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Old Dec 19, 2020 | 09:45 PM
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Because when the AC runs it removes moisture from the air so the windows will not fog up.
 
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Old Dec 20, 2020 | 01:36 PM
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My concern is that because there is little refrigerant left (I'm quite sure of that)....that I may be damaging the compressor by having it run.

 
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