well, don't want to open a can o worms, but there was an update kit for both the AC and the door seals. What year modelIJ The system was set up origionally to have the compressor run all the time. Then add hot water to warm it up if necessary. Problem was whoever made the valve had a little slack in the stem to shut off flap, thus one either was too hot or too cold. The fix kit worked and it went back to the old system.