Thanks for your response especially for the service manual which has the info to test the controller, inverter (page 39).
I did check the power at the inverter and it had the power (120V at C2 Pin 5&6 and Neutral at C2 pin 3) . I also agree with you if the mode shifter went bad the inverter should blink 4 times.
I think my washer has a bad inverter, I have ordered a new inverter and it's on its way. I will keep the board updated.