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A/C malfunctioning

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Old May 4, 2014 | 11:40 AM
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ON A/C malfunctioning

My AC system started acting up end of last year. What happens is I get only hot air blowing while in AC mode and it's really hot.
I have tried using recycled and outside air setting but that doesn't make a difference.
Today however it kicked in and blew ice cold. So it would appear that it's not a coolant or compressor problem.
Any one have thoughts or similar experience.
Thanks much for any ideas
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Old May 4, 2014 | 12:20 PM
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Originally Posted by BogsEight
My AC system started acting up end of last year. What happens is I get only hot air blowing while in AC mode and it's really hot.
I have tried using recycled and outside air setting but that doesn't make a difference.
Today however it kicked in and blew ice cold. So it would appear that it's not a coolant or compressor problem.
Any one have thoughts or similar experience.
Thanks much for any ideas
Possibly the circuit board is getting a bad connection.
Turn your radio on, press & hold the on button, then press the seek arrow up at the same time, the temp control will display. Turn temp ****, 0 thru 16 should be displayed, 0 being cold, 16 hot.
If it doesn't transition smoothly the board connections likely need to be resoldered.
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Old May 5, 2014 | 07:35 AM
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many thanks Big Cajun I will try this today. I will post my results.
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Old May 5, 2014 | 03:03 PM
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I got to the controller window but the temp ctrl **** doesn't effect the indicater which is stuck on 16 HOT.
Would this still be the circuit board or the temp **** on the dash? Also is that circuit
board easy to get at if I need to replace or resolder it? Maybe all the parts just need a good cleaning.

Last edited by BogsEight; May 5, 2014 at 03:06 PM.
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Old May 5, 2014 | 03:13 PM
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Originally Posted by BogsEight
I got to the controller window but the temp ctrl **** doesn't effect the indicater which is stuck on 16 HOT.
Would this still be the circuit board or the temp **** on the dash? Also is that circuit
board easy to get at if I need to replace or resolder it? Maybe all the parts just need a good cleaning.
It's a common problem for the resoldering .
Radio has to come out, there's a DIY somewhere in the DIY section.
I need to do mine, but I can still get it to work by messing with it. I'll wait t'il it no longer works.
Good luck!
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Old May 6, 2014 | 07:56 AM
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Ya I find fiddling seems work sometimes as well. I appreciate the input BigCajun.
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Old May 6, 2014 | 03:40 PM
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Originally Posted by BigCajun
It's a common problem for the resoldering .
Radio has to come out, there's a DIY somewhere in the DIY section.
I need to do mine, but I can still get it to work by messing with it. I'll wait t'il it no longer works.
Good luck!
Originally Posted by BogsEight
I got to the controller window but the temp ctrl **** doesn't effect the indicater which is stuck on 16 HOT.
Yep. Fiddling with it worked for me for four years. Here is the DIY: No Heat? Repair the Heater Control
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