Your telling me when i bought the house I had to get them out a week later and fix it. It had a leak inside the house. Then about a month later a new leak outside in the coil. so they put a new coil in it and ran for another 2 months. Then again it went down. So I told them i need someone that know what the hell there doing and fix this thing. This time there was a restrition at a coupling (outside), and there was something else. *Knock on wood* its working fine