A:AnswerWe had the same problem. According to the manual you need to wait 5-min before trying to plug it back in. We actually had to wait 10-min. It did work though!
A:AnswerI haven't tried but the owners manual states that coors kegs are not compatible with the keg coupler that comes with it. You could always change it out with one that will work with coors kegs. The inside dimensions are 28" high 20" wide and bottom front to back ranges from 13" on the left to 16" on the right if that helps.
A:AnswerSet at 2 if that don't work set at 1, if that don' work send it back, or just send it back. It's not normal, I've got mine set between 5 and 6 and the temperature is 37-40
A:AnswerThere are ~3.25 inches of space above the top of a corny keg.
You might be able to fit the keg with tap inside but most likely you will have to remove the tap handle.