The first thing you MUST DO is to give a manufacturer, make, and model of the Uwave. That way we might be able to give you a much more detailed suggestion on how to proceed.

if the wall outlet into which you plugged the Uwave is definitely ok, then you have to get the cover off to proceed with trouble-shooting the problem. The fact that everything is dead surely points to a fuse in the primary circuit. So, spend the $ and get the correct screwdriver bit and screwdriver bit holder to remove the cover. Then, post back here the info I suggested and we can proceed from there.