Jerome B Tamrac , FL April 09, 2017 Appliance: Model WMH32517AB - 0 Microwave constantly blowing fuse 1 of the 3 door switches went bad. I replaced all 3 and kept the 2 older ones in case i needed a fix again in the future. While pulling it all apart i damaged both interlocks so I had to replace them also. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes