Dave G Austin , TX November 22, 2019 Appliance: KitchenAid Dishwasher KDFE304DBL0 Kitchenaid Dishwasher Kdfe304dbl0: Dishwasher making a whirring sound and not draining water. How to replace Drain Pump. After inspecting the drain pump. I discovered a tiny bone that had scored the impeller causing it to crack. Thus leading to its demise. The replacement was easy and quick. Used a wet-dry vac to get all the water out of the dishwasher. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes