I have mine in my basement where it is cool, but there is still a bunch of condensation. I can only imagine what it would be like in the garage! I guess it's 'normal' for these machines.
I try to keep mine dry as possible, I don't want any mold or anything growing there.
For those with problems, have you had the fans turned around? On many of them, they put the fan in backwards which caused freeze-ups and lack of cooling.
I was lucky enough that one time the service guy had ordered a dispensing unit to try to fix something and found that it was something misaligned and he did not need it. He asked if I wanted the dispensing unit (essentially the entire guts of the thing including the controller in one piece and of course, I was like heck yeah) Since then I have not had one single problem though.
Now my machine constalnly jams up. I'm using 12oz cans, loaded them as instructed, but it still jams up constantly. Even if one ejects properly, the next time I press the same slot, it will jam. Very frustrating.
I've resorted to just opening up the thing and taking a can out the old fasion way. Defeats the whole purpose of getting one of theses things, though.