According to another article, http://www.sfgate.com/realestate/article/Squatters-don-t-sit-well-with-Airbnb-hosts-5631952.php http://www.sfgate.com/realestate/a

According to another article, http://www.sfgate.com/realestate/article/Squatters-don-t-sit-well-with-Airbnb-hosts-5631952.php http://www.sfgate.com/realestate/article/Squatters-don-t-sit... , it is suspected that the squatter is intentionally running the AC full blast with the windows open.