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Originally Posted by devilsfan
I had the main board replaced on my AC a few years ago. Lately, I noticed that when I turn the system off, it blows hot air through the vents. I have to turn it down to 60F, THEN turn it off to prevent this from happening. It never did this prior to the AC work. Thoughts?
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Mine has always done this...whatever my last HVAC setting was (temperature and output vent), once I turn it off it still blows; just a little bit. Every other aspect of the HVAC seems to work fine...
I simply got in the habit of changing the output vent to the defroster before shutting it off.