Donald G Plano , TX July 23, 2017 Appliance: Whirlpool Washer WFW8300SW00 Whirlpool Washer Wfw8300sw00: Washer water pump was not working. How to replace Washer Water Pump. Replaced water pump. Just like the online video on the Appliance Parts Pro website. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes