On our Kenmore front load washer all light go on etc every thing seems normal except when you push the start button it beeps 3 times & the light blinks quickly 3 times then nothing. When you go thhu the error code drill of holding down the start and pause/cancel buttons no error code (lightflashing) comes up.
I assume you have found the tech notes inside the lower service panel and are using them to try to generate and interpret the error codes.
If you cannot get the machine to do the diagnosis then the likely problem is the control unit itself.