I just picked up an Igloo brand kegerator on super clearance from Home Depot. I understand it's far from top of the line but it doesn't seem to be cooling at all. After some research it seems to be a rebranded Edgestar KC2000 model. The compressor has been constantly running (the sides get very warm) and after 48 hours the unit hasn't cooled below room temp of 68 degrees. Any ideas on what is not working or did I get a bum unit? Any help would be appreciated. Thanks