I have not worked on this model as of yet, but I've been reading some other posts on this problem, you have 2 control boards, other members have found one of the control boards had burnt spots on them, and another found the connector pins in them have been coming out on the control board itself.
So I'd check both your control boards first and check the connectors to the control boards.
This is the main control board for your model:
This is the motor control board for your model:
Here's the service manual: https://drive.google.com/open?id=1lxpbkTUy65bViCI51K6mNYFSRL6dAKW0
Both boards are in the back. You will need to pull the laundry center out from the wall. Look on Page 144 where it says Main Control Board Accessibility.
Let us know how it goes, if you decide to do it yourself.