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Old 01-09-2016, 03:14 PM   #1
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Cool A/C Heat on dash

There are many new 38A on forum so my question is this.With the dash control in the dash/floor position is your A/C compressor kicking in.Finding it is a problem in this position to keep hot air supply fighting the A/C and it only happens then.Had to have compressor replaced by FL.when it seized up coming home from FR factory for other repairs.FR said it was a FL problem but they say FR problem.So I am trying to see if it is a problem with switch or just the way designed.
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Old 01-09-2016, 04:13 PM   #2
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If I understand the problem correctly, you want to blow hot air thru the floor vents & the dash vents at the same time. When doing so you are not using your A/C compressor.

When directing air (other than using your A/C) you are engaging a solenoid that directs air to the floor. dash, or defroster vents.

When using your A/C, air is directed thru the dash vents only.
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Old 01-09-2016, 04:22 PM   #3
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No,when i use the dash/floor position as in picture the A/C comes on.I am not in the A/C position as pictured.the A/C is on the far left of the switch.
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Old 01-10-2016, 02:49 PM   #4
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Does the A/C compressor come on when you direct air to the floor vents only, or to the defroster?
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Old 01-10-2016, 05:47 PM   #5
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yes to defroster,no to just floor or just dash.
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Old 01-10-2016, 10:05 PM   #6
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In my truck the ac comes with the defrost it's supposed to help dry the air. I have to turn my fan off and on to reset it. Not sure if it's anything similar.


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Old 01-10-2016, 10:16 PM   #7
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Typically the A/C will run when in defrost modes (or obviously A/C mode). If it runs constantly in other modes theirs likely a fault in the HVAC control.
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Old 01-22-2016, 08:41 PM   #8
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This whole set-up is similar to the first auto-dash designs. My 61 Impala might have had this design. When you are in A/C, or possibly defrost position, that is the only time you should get A/C. In the position shown you should only get heat to the dash and floor vents.
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Old 01-23-2016, 10:04 AM   #9
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our 38A is a 2016 and the A/C panel is different than the one shown in the pic. Ours has a separate compressor button. Sorry I couldn't be of more help.

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Old 01-23-2016, 01:18 PM   #10
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Karen, can you post a picture?
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