Gregory B Woodbury , CT March 15, 2016 Appliance: Amana Top Loading Washer HE4030 Amana Dryer He4030: I was getting several error codes f11 communications error and dl door lock the machine would stop at various points during a cycle. How to replace Washer Main Electronic Control Board. 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. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes