TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

HVAC Running by Itself

Discussion in 'Model S' started by andydoty, Jun 19, 2016.

  1. andydoty

    andydoty Member

    Joined:
    Jan 12, 2014
    Messages:
    226
    Location:
    Massachusetts
    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?
     
  2. chillaban

    chillaban Member

    Joined:
    May 5, 2016
    Messages:
    576
    Location:
    San Jose, CA
    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.
     
  3. andydoty

    andydoty Member

    Joined:
    Jan 12, 2014
    Messages:
    226
    Location:
    Massachusetts
    Interesting.... Oddly enough, I didn't think of that. Some of the computers are running constantly. So, venting the cabin probably helps.
     

Share This Page