GDF640HSM2SS General Electric Dishwasher

1. Turn off breaker supplying power to dishwasher in electrical panel
2. Open dishwasher door
3. Unscrew the screws that secure the dishwasher to the counter.
4. Tip dishwasher forward. Identify the non-functioning door latch. It looks exactly like the replacement. Unclip the wire harness from the door latch.
5. ... Read more On the inside of the dishwasher, there are 2 screws directly under the door latch. Unscrew them and carefully set aside.
6. Remove old door latch.
7. Set new door latch in place. Holding securely, replace screws removed in step 5. Toward the end they get a little tougher to screw in.
8. Plug wire harness into new door latch.
9. Re-align dishwasher and re-secure to counter in previous position.
10. Test latch to make sure it closes properly.
11. Turn on breaker in electrical panel.
The dishwasher should now function properly.

This didn't work out well. At the beginning of September the control panel in the door started to work erratically, the lighted buttons did not light up as expected. I ordered a replacement board and installed it.
CONFIGURED UI SERVICE CONTROL Part #: PS16618944
This did not help, so I ordered another control board and installed ... Read more it.
CONFIGURED SERVICE MACHINE CONTROL BOARD
Part #: PS16226072.
This did not help. This control board has a small orange fuse that looks like an old fashioned transistor. it was fine, as was the fuse on the previous control board.
There were two things about the Control boards that might help someone figure out what went wrong. When I took out the original control board, there was evidence of component overheating. When I installed the new control board there was a green light that was blinking.
I had hoped to complete this repair, but we have been without a dishwasher for over a month, so I bought a new one.
(I am a competent Instrumentation and Controls technician)
It could be that there is a bigger issue here; a major component failure.
If anyone has some suggestions to try, I would like to repair the machine and sell it as a used appliance.

this was ordered 4-9-21 and I have yet to receive it. Its difficult to explain the installation when you haven't received the main part. I paid for this but you have not shipped it. Very poor customer service.