Can't say that I agree with ever putting Miller Lite in a kegerator, or drinking it in any other form for that matter, but here is the link for the temp. fix. I turned the screw a full turn and now have the internal temp. at a steady 38. That didn't entirely fix my foam problem, though, as I think I need the blower that the folks here have talked about (on other threads if not this one) but I am managing for now.
http://www.tommydehart.com/fun/keg/haier_brewmaster.htm