I charge in my garage at 40amps via NEMA 14-50, usually at night while sleeping. A few weeks ago, I charged during the day and noticed that the HVAC fan was running. I didn't think too much of it until the same thing happened today. Now I'm wondering if this happens every night as well. Is is it normal for this fan to run while charging? if I open the door, the fan stops. I tried the app and it doesn't show the HVAC as running. I know it's the HVAC fan because I can feel air coming out through the door handles.