How to Troubleshoot & Replace Whirlpool AP6011824 / WP8182689 Washer Central Control Unit

Changed the control unit..as you can see it took me a while as I discovered if I tapped the old control unit the door would lock and machine would work. I got tired of doing that so I finally replaced the unit. Works great!!! 

I removed the door lock mechanism and confirmed that is was working properly. The only other source for the problem was the CCU. I also received a class action lawsuit postcard citing issues with owner's needing to replace the CCU within the first 3 years of ownership. My CCU lasted for 10 years. I purchased the CCU and installed it per the AppliancePartsPros video. The printed circuit board inside the CCU was not properly seated, so I needed to seat it to be able to install all of the connectors. I did chat with AppliancePartsPros who suggested that I try seating the PCB. When I replaced all of the panels, and started a cycle, the door locked immediately. 

I removed and cleaned the wire connections on the motor control board as well as bending the connector contacts to insure a good connection to the board. I was considering opening the relays on the main board and cleaning them as well as considering replacement relays as that is the root cause of the door lock failure but I decided to replace the CCU. I could tap in the CCU and see that the washer would cycle thru after cleaning the connections which led me to the conclusion that the relays had become dirty. 

Replaced the CCU. 

Replaced main CCU board.