We moved into our house 6 months ago. Our microwave/oven had gone out twice in the first few months and I had to reset it by turning off the breaker, leaving it off, then turning it back on. That was not convenient, but not that big of a deal. 

Recently, it went completely out and I could not reset it. The appliance repair company came out, after we had the electrician check the power, and they found a blown fuse, which is in the back of the unit so it had to be pulled out. Being a special order part, it took some time for it to arrive.

The part came in and they came back out, replaced the fuse and put it back in place. The fuse immediately blew again and now we are several weeks of not having a usable microwave or over.