DIAGNOSIS The touch control panel is malfunctioning. Moisture ingress or a faulty connection is the most likely cause.
FIX
1. Disconnect power to the dishwasher at the circuit breaker for 5 minutes. Restore power.
2. Dry the front control panel thoroughly with a soft cloth. Condensation or spills can cause phantom touches.
3. Ensure the door is firmly closed. Ajar doors can cause alert beeps.
IF THAT DIDN'T WORK The main control board or the touch panel ribbon cable connection has failed. This requires a service technician to replace the control assembly.
HEADS UP Continuous beeping without display is often a sign of a failed control board. The board is located behind the kick plate and is sensitive to moisture.