Tesla Motors Club

Hey all. I’ve had my MY LR for four days now. It’s an amazing car. My concern is that at night, parked in the garage, I can hear a low level hum, sometimes for hours. And other times it’s completely silent. It doesn’t appear to be connected to whether it’s plugged in or not. I can also hear a quiet fan going. I assume it’s doing something important but I’m not sure. I verified the AC isn’t on and My phone is away from the car. Anyone else hearing this? Can anyone explain what’s happening? It’s a hot garage during the summer so my best guess is it’s keeping the battery cool, but I just don’t know. Thanks.