Keep in mind that some modes on these so called "energy efficient" units can take up to 3 hours normally depending on the cycle check your manual for cycle times. These units have an optical sensor on the right of the unit typically with a bunch of yellow wires going to it which can cause similar problems your expressing and not cleaning the dishes good is another symptom this does as well. Kitchen aids are infamous for main board and touchpad problems i've done at least 5 main boards in the past 3 weeks. Good luck