The key pad will not function. You can get it to turn on by using the "ADD A Minute", can not set time, turn lights on or off. The only buttons that do work are (1) bake potato (2) warm (3) add a minute (4) cancel (5) start (6) sometimes fan "on" but you can not shut it off, to shut the fan off you unplug it. (7) The clock runs, but you can not set time. I was told the circuit board was defective. I replaced it. Now there is nothing. The door light is the only thing that works but then it worked before. I re-installed the old circuit board and have the original problem back.