Rosita C Vanburen , MO June 10, 2019 Appliance: Maytag Electric Dryer MDE7400AYW Maytag Dryer Mde7400ayw: Timer. How to replace Combo Brush Set. By following your video carefully I manage to fix my Maytag dryer. I was amazed how easy it is, as a senior citizen like me I learn how. Thank you so much, hopefully, my dryer will last for another 20 years, this is how old my Maytag is. I take care of all my appliances as much I can, 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes