Replaced the wave cover. Unscrewed existing cover that is at the top inside the microwave. Screwed in the new cover. Took about 30 seconds to do. Bosch service wanted over $100 for a service call plus parts and labor. Did it myself in seconds for under $10.
I watched a YouTube video that confirmed the diagnosis of failed safety switch. Order the switch and the housing as recommended (because the housing is cheap plastic and as it ages it wiggles too much and no longer holds the switch correctly). With help of my sons to get the microwave out this was an easy repair. I recommend taking the left side panel off (involves removing the left frame rail as well, but makes access SO much easier). Bottom line: no need to replace a $1700 microwave. No need to replace several appliances to go with a new brand (that was wife's idea for $4500!). Nope! $15 of parts from partselect.com (plus shipping) and we are cooking again! THANKS!
After going to a local parts store to get the correct switch, I replaced the right door switch. The correct switch is a normally open switch. The one shipped to me was a normally closed switch. Either Bosch provided the wrong description of the part required or someone at partselect needs to check the part stocked.
