In mild weather, I like to keep the windows closed to minimize noise and to run the fan to keep the car from getting stuffy, without using either heat or air conditioning. Intuitively, one might think that turning "Heat & A/C" off and turning the fan on would accomplish my goal of bringing in fresh air without using heat or cooling. It doesn't. What seems to be happening is that, even though "Heat & A/C" is turned off, the system tries to achieve the temperature that was set with the temperature knob. Here is a pic of the screen. You can see that the fan is on, "Heat & A/C" is off, and the temperature is set to 80 degrees. Hot air was coming out of the vents.
What does the "Heat &A/C"setting do? It clearly doesn't turn the heat off when it's off. The only way that I have found to achieve what I want is to adjust the temperature control to match the outside temperature, which presumably, keeps heat and A/C off. Is there something I'm missing?
Is my car working as designed, or is there a malfunction?