Wife left our GE spacemaker 2 running for 20 minutes with nothing in it. Now it's dead. Theres power to the outlet so it's not a breaker. Is there an internal circuit breaker or reset or possibly a fuse?

Probably not a house fuse. Typically good or bad!! Have you tried it in a totally different outlet?? Could be a bad connection of your circuit breaker to the bus bar in your circuit breaker panel. Try it on an outlet on a different breaker. Or have someone check the power at the outlet when it is running and see if the voltage is dropping.

Check the circuit breaker. If it's pugged into GFCI type outlet or an outlet that's run from one, make sure the breaker didn't trip there.

The outlet is normally in the wall behind them, check your breaker panel for a tripped breaker or remove the Microwave and check the outlet.

yes, at the back of the microwave there are 4 or 6 screws, take them out and then pull the cover follow the cable( the one you connect to the outlet) going to the inside of the microwave inside you will see the fuse change it with the same size, it is a slow burn fuse

• Make sure that the microwave is plugged into a grounded outlet. It must be a 3-prong outlet.
  
• Make sure the clock is set.
• Check to see if a programming sequence was entered. Sometimes improper programming or a program sequence such as delay start can cause the touch panel to be non-responsive. Unplug microwave or turn off house circuit breaker for 30 seconds. Plug back in, or reset circuit breaker, and try reprogramming unit.
  
• Check the house circuit breaker or fuse box. If the microwave is DEAD and there is no display and nothing works- the problem could be a blown fuse or tripped breaker.

Same thing happened to our unit. My wife had started cooking potatoes and we left house for an hour. Came back and unit was dead, nothing worked. Verified power @ plug. Unplugged, pulled control panel and checked fuse which is mounted @ top of circuit board (will now refer to as CB), back side of interface panel. It passed continuity test. Inspected wiring and was all intact, no sign of burn thru. Varistor visual also looked good, no discoloration or burns. Removed (5) fasteners that hold CB to interface and inspected back side. Noted minor "blackening" @ pin location #1 of the (5) pin plug immediately beneath fuse. Resoldered because connection looked poor. Plugged back in and tested, all features worked correctly!

If it came installed in the house, it may have its own breaker switch. I'd check the breaker. Have any outlets in the kitchen gone out as well? This would support the breaker switch idea.

Hope this helps.

check the circuit breaker first it may be the fuse is blown The fuse may be located behind the grille following the power cord on the rside of the unit.
it may be a bad thermal fuse or oven thermostat.

May be a shorted door switch or possible bare wire somewhere that is grounded which is rare. Would suggest using an experienced technician check it due to high voltage.

It could be a bad in-line circit breaker fuse. Unplug the microwave and take the outside cover off. Look for the in-line circuit breaker fuse. Use a plastic fuse puller (not your hands or a metal tool as there is still voltage stored in the microwave even when it is unplugged). Look at the fuse and see if it is blown. (The metal wire running length of tube will be broken. If you have one, test with an Ohmmeter.