I’ve tried to search for it but haven’t found. My dishwasher (Whirlpool ADG 9966 M) was beeping while closed (we started the dishwasher and went away). After opening it stopped beeping but the LED of Start button was flashing 3 times (then pause and again). Also LED for Program 6th sense 40-55 degrees of Celsius was on and I am pretty sure we started ECO program.