Planner Trouble, Delta, 22-540

Is there a reset switch? Or maybe there is a thermal overload protection that may reset itself after cooling down.

I checked every where I could see and found no reset. That certainly seems like what it is. I let it cool down for a couple of hours, no change.

I found this http://www.toolpartsdirect.com/cgi-bin/schematic.cgi/delta/22-540. It looks like there is no reset switch and if there is an internal thermal reset, it is not shown.

Do you have a continuity tester? You said you bypassed the switch. Maybe you could check for continuity from the "motor side" wire from the switch through to where the white wire is connected to the motor wiring (wire nut connection). If there is continuity, maybe the problem is in the plug. The plug can be tested also with the continuity tester. If you had continuity as explained above, just unplug the planer, turn on the switch and test continuity between the two flat lugs of the plug. If there is no continuity then the problem is a bad plug or the wire to the planer. Also, I don't want to sound like a smart a** but you did try a different receptacle. Sometimes the receptacles go bad and don't pop a breaker.