Hello! My Whirlpool dishwasher - model DU1100XTPQ6 - is buzzing as soon as I turn it on, and there is no water whatsoever coming into the dishwasher. The buzzing is a monotone sound, not too high in pitch. Choosing a different wash or dry cycle from my normal routine doesn't change a thing.

Does anyone have any idea what this could be? Impeller? I've repaired this dishwasher a number of times before, but this one has me thinking maybe it's time for a new dishwasher.

Thanks for your help!