While I was working on the project, I stayed in this rental house and showered and slept. I ran the air which worked perfectly. I came in one day when the manager thought I had returned to Illinois, and the thermostat had been opened and batteries removed. I was furious. Nobody authorized anybody to mess with anything. My wife calls, and the manager says she just replaced the batteries......this simply was not credible. I left about two days later, and my wife got a call that somehow a hole formed in a copper tube which goes from the inside A frame to the outside condenser, and that all the freon drained out and it will cost close to a 1000 to replace the tube and freon. I have been building houses for 35 years, and I have NEVER had a hole in the actual tubing. You will get leaks around connections, but a failure of the tube.....Never, but the best part thinking with a new tenant that we would just say yes, they wanted to charge time and a half over the holiday weekend. Our answer....tell the tenant who was suppose to move in today to go find another rental, do not do any work, and as sick as I am I will have to pull the copper, find the leak, and determine if I can trust the contractor, and now my agent.......I get things stop cooling....everything fails, but copper lines and copper pipe just do not get holes in them. Once I have determined the cause of the "hole" I can proceed, but I can hardly walk, and the idea of people trying to take advantage of my wife after I am gone gives me superman strength. It could all be legit, but the battery thing has me furious, and this following that.....has me suspicious. Looking at 3k replacement which is no big deal because those things are part of renting a house, but time and a half and a hole in a copper tube.....sorry time for an unexpected visit.