Climate system randomly turning on with car off?

[holmgang]

Happened a few times now. I use phone key exclusively. Drive somewhere, park, then move to backseat (e.g. sit with my kid). Car/MCU is “shut off” (screen off).

Then a short while in, the fans will start blowing. Also, the app does NOT reflect that it is on through display or visualization. MCU also stays off so it doesnt display what hvac mode is operating.

Obvious suspect is Cabin Overheat Protection except that car is parked under shade and ambient temp inside and out (shown on app) is 20C. Also, if I toggle cabin protection to off, the fans continue to blow.

Really annoyed now at the various climate issues im getting

 

[GtiMart]

After you use the AC in a drive, the car will dry the AC radiator to prevent bad odors from developing. It will use the fan for this. It does start a little bit after driving and can stay on for a while. This is by design.

 

[BigNick]

Could this be some sort of "afterblow" feature to try to keep the dreaded AC stink out?

 

[RTPEV]

If that's what it is, it doesn't work (at least in my case). I've had this issue with every car I've owned for the past 20 years or so. The Tesla is no different, even though when I last had it in they told me they did something to permanently fix it (yeah, sure!)