Upon pushing the start button, water begins to flow only for a few seconds. then a pause, the lid locks and I hear solenoids energized, but no water. Further observation showed voltage on the hot, cold, and liquid detergent valves only. No voltage on the mixing valve. I unplugged the detergent solenoid and jumpered that voltage to the mixing valve which allowed the tub to fill. Is it the control board or something else that won't allow the mixing valve to energize? Everything else seems to work okay.