I purchased a American Standard 13 seer, 2.5 AC/Gas Air Handler, model number ZA7B3030A1000. They finished the install on a Friday, that evening I even had to shut it off when the house was at 75 because it was cool. That Sat it froze up. They came back out on Monday and said the first guy didn't put enough freon in. They recharge it with more freon and then my thermostat starting cutting off so we replaced it with a Honeywell 8000. The unit then wasn't getting cold enough, so then they said my TxValue needing replacing, so they did and recharges the freon again. But, the air coming out of the vents is still only about 10 degrees colder then the room temp in the am and 7 degrees in the afternoon. So by noon or so the house temp is shooting up to 80 and running on day. It was 87 outside and inside was 80. Now they are saying it is the compressor and they are going to replace it on Monday. Any thoughts or comments on whether it is the compressor or if something else may be going on?