GE Dishwasher Control Board (WD21X27998)

The GE Dishwasher Control Board manages the dishwasher’s cycles and timing. It sends power and signals to components like the fill valve, wash motor, drain pump, and heater based on the selected settings. It also reads inputs from switches and sensors to decide when to fill, wash, heat, drain, and dry.

Common failures include damaged relays, burned solder joints, moisture or corrosion on the board, and electrical surges. Heat buildup and vibration can also weaken connections over time. When the board fails, the dishwasher may not start, may stop mid-cycle, or may run functions at the wrong time.

Look for these symptoms to help decide if this control board matches your problem:

• Dishwasher will not power on, or has intermittent power
• No response to button presses, or random beeping
• Cycle will not start, starts and stops, or ends early
• Won’t fill with water, or fills at the wrong time
• Wash motor will not run, or runs without progressing through the cycle
• Will not drain, or drains but will not continue the cycle
• Heater will not turn on, leading to poor drying or lukewarm water
• Stuck on one cycle, or cycles change on their own
• Displays error codes related to control or operation timing