This air conditioner freezes up constantly, at least every 2 hours. It has done this since the first week we bought it. At that time, after talking with techs at CW and the phone # given in the paperwork, we were told this was to be expected if we were parked where it was sunny and hot. We were told to set the controls to fan for it to thaw out. What use is it if it won't work properly in the summertime? My husband, who is handicapped, and his service mobility dog spend a lot of time in the RV when the weather is hot, so I need something that will work properly so that I am not worrying about him and our other pets. But I am unable to safely leave my husband and our pets in our camper for any length of time. We are not able to get a full nights sleep because of waking up and having to set the controls to fan only until it thaws out, multiple times a night. We have dealt with this until now, but the New Mexico heat has made this an unbearable situation. I don't know if I just got a faulty air conditioner or if they all do this, but if they don't work in the weather they are supposed to, then they are useless to buy.