alright i have had a broken AZ for a month now and i finilly got around to call AZ up so i can send it in to get it fixed, and the lady tell me that they have a recall on all AZ compressors. I don't think its anything bad, but they are rebuilding them and putting in all new parts. she said it will run FASTER and QUITER. its basically like a new design. If any of you have any AZ compressors now is the time to send it in.....whether its broken or not. just thought i would inform all you guys, since i havent herd any talking about this yet.