Dishwasher won't come on

Was working fine then one day it started beeping about every 30-ish minutes with and without the door open. One day it just died, no lights no sound. I researched and didn’t find much of anything on the internet. I replaced the main power board and it worked for 1 load and that was it. I replaced the door latch and it worked for 1 load and that was it.. Turned off breaker and turned back on. Worked for one load. Now even turning breaker off and on doesn’t work. What is going on?

Okay, so here’s an update and maybe this will help… I turned the power off and went through the wiring and made sure the wires in the wire nuts were making good connection. I have been able to use it regularly now with no problems. However, it will make an ascending beep when closed every 25 minutes. If the door is not latched I get a descending beep at the same interval. There is no information on this issue that I have found. Any ideas?

Nothing huh?