I replaced both power control board and User Interface board. Started by checking for 13.5 volts on control board between #2 and #5 pins. Voltage was never over 5 and showed 0 multiple times. Replaced but still no power and voltage still showed less than 5 or 0. Thought I had a bad replacement board and returned under warranty for replacement with same results. Replaced UI board and power worked. Have ran 5 cycles in two weeks with no issues!