[flybouy]

What John said, plus I'd give things a good look see. Mice love to eat the insulation on the wires. Try some Fresh Cab it works well.
Also check the breakers, turn them completely off, then back on. They can be very stiff to flip off and back on, much stiffer than a light switch. If one is tripped it can look almost normal.

Given the holiday, and the time it would take for warranty replacement, I'd go to WalMart or whatever discount store may be close by and buy an inexpensive micro wave to get you by for the next week or two if it's not the outlet.