How to Troubleshoot & Replace Ge AP7218676 / WD21X31902C Dishwasher User Interface Control Board

I called Appliance Parts Pro to verify the appropriate part needed. All of my questions were answered, which I felt was very helpful. The agent took my order promptly and the part was ordered and sent . Delivery was in 2 days....very impressive as we are in the Xmas delivery time frame. 

Replaced the UI control panel, hardest part was configuring jumper posts. There are great video online. Thank you 

Watched 90 minutes worth of YouTube videos on the fixit subject. Ordered the parts used the parts just like the folks did in the videos. Repair complete. Broke the cabinet gaskets in the process, ordered new ones but they are on a back-order thing. Will complete the reinstall next week or more. 

Replaced UI board.The AppliancePartsPros insructional video was super helpful. 

After finding your website and following the information on troubleshooting the answer was easy. Watched the video showing how to change the user information board. The video was very well made. The whole experience with your company was very good. I would recommend and use you again. 

Replaced Configured UI Board 

Ordered and received in record breaking time the User Interface circuit board and installed it using the informative video they provided on their site. 

Replaced Configured User Interface Board. 

Replaced user interface board after confirming the main board was not at fault because power was being sent to the user interface board. 

Went to youtube and found a video that looked like it would be related to my model Dishwasher. Verified voltage at junction box....120Vac was present. Verified the ~14 Vdc at controller pcb, and also noticed green LED flashing which some people say it is communicating to the rest of the system. So, because we had the 14Vdc, that was 14 vdc going to the UI board, that tells me the main controller pcb was doing its job. Replaced the UI pcb, no more issues. Thank you appliance pros for the part and the parts list! You guys Rock!!!