Hi, welcome to Just Answer. My name is ***** ***** I look forward to helping you!
Please know that I am not compensated for my time by the site until you rate using the stars at the top of your page. A rating is appreciated once we get to the solution for your appliance issue, thanks!
Without power to the machine, there really is no way to test the electronics. You have tested everything you can and verified okay. The main board in the back lower right corner is the power board and most likely to be faulty. I would start with that board. The company below allows returns on installed parts, so I would take advantage of that return policy on this issue.
The link below is to the part you will need from a highly recommended company rated A+ with the Better Business Bureau. They offer a 100% money back guarantee, EVEN ON INSTALLED ELECTRICAL PARTS, for an entire year! They are the only company to allow returns on installed parts for a refund and offer a FULL ONE YEAR WARRANTY!
Please let me know if you have additional questions or need clarification. There is no additional charge for any follow up help!
Please remember to rate before you leave. If you have any other questions, please let me know! You may continue asking follow-up questions until you have all the information you need, even after rating my service. Thank you!