We have a over-the-stove microwave. We had wiring for a exhaust fan that we
used to put a plug in for it. That wiring had not been used for almost 30
years, was just there. Put in a box and a plug and it worked well for almost
a year. Then all of a sudden the microwave stopped working. It works with an
extension chord, so it was not the microwave.

So I thought it must be the plug and went out to buy a new one. I did not
know about different amps when buying the first one, but this time saw that
there were different amp plugs. I figured I probably had not bought a 20 amp
plug the first time and it simply failed because of that. The circuit
breaker shows for the kitchen is 20 amps, so I bought a 20 amp plug.

We installed it today, twice, and still nothing. We don't know what to do
now? Any suggestions? We have one of those simple testers that you plug in
to be sure something is wired correctly, nothing happens when we plug that
in either. Works on the nearest plug to the microwave fine. All the plug in
the kitchen work fine, except this one.

Is there anything else we can do before having to call and electrician?

Thank You.