Hi,Welcome to Just Answer, My name is XXXXX XXXXX forward to helping you today. lets get started.
If there is a leak did they say it was the compressor itself leaking Freon? Who told you $800 more to fix this? Did they actually check it already and say you need the compressor replaced? That's the only thing that would cost that much money, there are problems with doing compressors in these, sometimes it's not actually the compressor it could be a blockage in one of the lines, if this is the case replacing the compressor may work for a while but the blockage will most likely happen again, it seems you are being taken for a lot of money, if I were you I would take the $800 and invested in a new refrigerator, most brands have their issues however, it's funny jenn air is made by whirlpool in usually we don't see a lot of compressor replacement in these however yours is seven years old and you may have had a bad compressor from the start, whirlpool is usually pretty good, hope this helps, thanks, Bryan