Whitey L Whitehall , MT December 04, 2017 Appliance: Maytag Gas Dryer MDG7400AWW Maytag Dryer Mdg7400aww: Maytag dryer: a broken door switch and deteriorated vanes on the blower wheel. How to replace Blower Wheel. Removed and replaced both items purchased from AppliancePartsPros. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours