Lynda R Jefferson , TX July 29, 2016 Appliance: Whirlpool Electric Dryer WED9400SW0 Whirlpool Dryer Wed9400sw0: Exhaust fan was broken making a terrible noise we replaced it running like new no noise. How to replace Dryer Blower Wheel. Replaced fan Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours