HVAC Running by Itself

[andydoty]

Before you ask. I have smart preconditioning turned off.

I was washing Sparky today and as I'm doing it (not plugged in), the HVAC blower turns on high. No AC as the compressor didn't appear to be running nor was the condenser fans. Either it was trying to determine the real cabin temp or it was trying to drop the temperature by venting the cabin with outside air.

Has anyone heard of this?

 

[chillaban]

The manual does state the car may occasionally start/stop the HVAC itself. I presume it's a combination of keeping the battery at an ideal temperature and also preventing the interior electronics from getting too hot too.

 

[andydoty]

Interesting.... Oddly enough, I didn't think of that. Some of the computers are running constantly. So, venting the cabin probably helps.