Peter M Ossining , NY April 03, 2015 Appliance: Maytag Washer- Horizontal Axis MAH4000AWW Maytag Washer Mah4000aww: Mold on gasket. How to replace Door Boot Seal. The fix was straightforward. It took under 30 minutes to change Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes