GE Dishwasher User Interface Board (WD21X31909)

The GE Dishwasher User Interface Board controls the dishwasher’s front-panel functions. It reads button presses, drives indicator lights, and sends commands to the main control so you can select cycles, options, and start or cancel a wash. Common causes of failure include moisture intrusion into the console, corrosion on connectors, damaged key circuits from repeated use, or electrical stress from power surges. A loose or oxidized harness connection can also make the board act intermittently. Symptoms that may point to a failed user interface board include: Buttons do not respond, respond only sometimes, or require extra pressure No indicator lights, dim lights, or lights that flicker or behave erratically Cycle selection will not change, changes on its own, or will not confirm Dishwasher will not start even though power is present Unit starts but stops when the panel is touched or when the door is closed Random beeping, error tones, or a panel that appears “frozen”