Bruce L Santa Rosa , NM March 11, 2016 Appliance: Whirlpool Washer WFW9400SZ02 Whirlpool Washer Wfw9400sz02: Hinge on washing machine. How to replace Door Hinge. Just removed the door, layed on a flat surface, remove screws, installed new hinge and re-installed door to washing machine! 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes