Not a microwave question! I looked you up in this thread because you seem to understand electrical stuff and you would see that I replied to you. Something else I can't find anywhere to ask..................
I have two lamps with three way bulbs in them on the same wall, but different outlets maybe 10 feet apart. Both of them have only been able to use the second brightness for years, even after I have changed the light bulbs. (You know I can't say this stuff technically.) I use the one to read practically every day and I am used to going click, click because the first click doesn't make any light come on. So Sunday, I went click..........and there was light and then click and click and I had three brightnesses. I tried the other lamp and it too had three brightnesses. I had unplugged that one a couple days before when it was cooler out and I was vacuuming behind the loveseat (which I do at least once a year). But the one I use for reading didn't work on the first setting right after that. I know this is confusing. "You'd have to be there."!
It's a good thing that I have three brightnesses, but why, out of nowhere? Is there too much power going through that wall now or something? They'll probably both blow out the next time I use one.