Replacing Microwave's internal fuse

The internal fuse in the microwave in our previous coach also blew. Or at least that's what I thought. After removing it though, and finding that a replacement fully restored normal operation, I took a close look at the inside of the fuse with a handheld 100x microscope. It quickly became obvious that the fuse element had simply detached from one end cap rather than blowing from an overload. I suspect vibration was the real culprit, possibly combined with a fuse that wasn't assembled quite as well as it might have been. In normal stationary residential use, that fuse may have lasted years longer.