CONCERN: Customer reports dishwasher is not turning on all the time and has to unplug and plug backnin. DIAGNOSTIC AND CAUSE: Tested the dishwasher for proper voltage to the dishwasher terminal junction box. Voltage to junction box is normal. Tested voltage from the junction box to the main control board, voltage test normal. Tested voltage from the dishwasher main control board out to water valve and dishwasher float. Found no power going through the dishwasher main control board. CORRECTION: Replaced dishwasher main control board and tested, operation now normal.