Lynn W Park Hill , OK May 18, 2026 Appliance: Whirlpool Dishwasher, Portable WDP370PAHW0 Whirlpool Dishwasher Wdp370pahw0: Dishwasher would not drain. How to replace Dishwasher Circulation Pump And Motor. Appliance Parts shipped me the new circulation pump within 2 day's and it took me less than an hour to install. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes