Bruce K Wilbur , WA December 01, 2024 Appliance: Whirlpool Washer WFW75HEFW0 Whirlpool Washer Wfw75hefw0: Different error codes 5d f9 e1. How to replace Drain Pump. Cleaned all the hoses, and replaced drain pump assembly. Seems to be working fine now! Thanks to Appliance parts pros! Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes