If your unit runs but does not cool, you have a "sealed system" issue. Either you are low on refrigerant which would be evident by frost build-up near the area where the freon first enters the evaporator plate. (lower middle, then travels left) or the compressor has lost the ability to develop the necessary differential pressure. You do not want to run the unit like that...you can **** in contaminants that will harm the compressor if you already haven't. You should contact a servicer to get it repaired. If you are still within the warranty period you should contact the dealer you got it from to initiate service.