My kenmore elite model 665.16462300 won't start?

My dishwasher (kenmore elite model 665.16462300) will not start any cycle. I checked all the switches and fuses and they tested ok. When I push a cycle button it lites up. I push the start button nothing happens then the lights on the cycle button switch off after about 20 sec.. I have no flashing lites and the lock out lite isn't on. I read all the post with related problems and tried there fixes but so far nothing has worked. Control board seems to be my other option.