I've got a Kenmore d/w mod: 665.665.13742k603 that will not power on. I have already checked and confirmed:
1)120VAC at outlet and to terminal block under d/w
2) voltage to the main control board
3) both door switchs
5) Door latch functions normal
4) thermal fuse has continuity
This leaves either the touchpad/control panel (p/n: 1551936) at $133.50, or the main control board (p/n: 1874821) at $195.65 as the cause of failure.
My question is: how can I determine which one it is without purchasing both expensive electronic components and simply part swapping?