Is the switch for the microwave also the breaker for it? Out of the blue our microwave isn't working - doesn't turn on at all now. Anyone have any ideas?
I had one do that a couple of years ago. I took the shell off and found a blown fuse. I replaced it with a slow blow fuse from Radio Shack,and has worked ever since.
get a multimeter from sears or home depot. <$20 a must have if you're a boat owner.see if you have voltage at the microwave and then work your way back to the battery.
Why not just plug the microwave directly into shore power and see if it works. If it does you have a boat problem. If not it's a microwave problem and very likely the slo-blow fuse. Replacing that fuse generally requires removal of the shell.