kitchen aid dishwasher not filling

My Dishwasher will drain but will not fill for the wash cycle. I sprayed water inside to see if it would work but it only made a loud sound like it was trying to wash and no water was being sprayed around. I checked the supply hose and it was on. Is there a common fail item that has been ordered multiple times for this type of problemand do you have any idea of how to troubleshoot and narrow the fault? Thanks.

First, check the water supply. Is there any water from the source to the inlet valve? If so, is the valve receiving 120VAC to open it?