2 days after the repairman replaced the main motor assembly. The dishwasher began acting strangely. The "start" buttom keep flashing and then the "normal wash" lights. Sometimes the "cancel" light as well.
Sometimes, it would start a cycle but stop in 1 minutes.
I unplugged it for about 1 month and then it runs normally for one night.
After that, the "normal wash" light keeps flashing.

I don't know if this is something to do with the repair of the main motor.
The repair did unplug and plug some wires. Any idea? Do I need to replace the contral panel?