[KiaCanuck]

As the weather is cooling down I've been using the heat a bit more but I've noticed that even when I turn the heat off it still seems to pump hot air through the vents. I assumed it was just getting rid of the "air in the system" until I went on a long drive yesterday and even though the system was off it was consistently pumping hot air for 1/2 hour after I shut off the system. Is anyone else experiencing this?

My temp solve, I turned the system back on and set it to recirculate the cabin air and then turned it off again and the air stopped being pumped in immediately.

 

[UN-Limited]

This has been a normal occurrence of every car I've driven going back to my 1991 Buick LeSabre. Read here to learn more:

Why does my car AC vent blow hot air when driving even when the AC is off?

Michael Flatman's answer: Well everyone seems to be typing random answers which don't answer the question, so I will. Hot air comes from the vents when the AC is off due to ducting “gains” (heat we are talking about). Your HVAC ducts are likely a big snake across warm components, around a heat e...

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