I think we have mastered most of the advanced features of the Clarity, but some aspects of the Climate Control System are still baffling (even after reading both the manual and the guide (I still don't understand why there are two documents)). If you just want the fan to push fresh air (with no heat), how do you do this? Do you just set the temperature to low (or if it is 30 outside will it try to heat the car to whatever 'low' is?)? This seems to work but shouldn't there be a way to turn the heat off and not just set it to low? When you turn on the front window defrost does it turn the heat on as well or do you have to do that by turning the temperature control knob? On a hot day if your temperature is set to low (and you were not using the the AC last time you drove) will the AC turn on when you start the fan? This seems to happen but we are not sure. Should the climate control screen show the AC as either on or off? Often neither on screen button is highlighted and when I tap the off button it stays that way with neither highlighted. I feel like I could go on and on. So any advice or tips at all about the climate control system would be appreciated. To be clear, we love our Clarity, but it's been hard to tell at times weather the heat or AC is on or off (we assume both are off when the fan is off).