NORMALLY SIMPLY UNPLUGGING THE CORD FROM OUTLET FOR A FEW MINUTES WILL RESET IT.
I SUSPECT YOU BLEW A THERMAL FUSE OR BAD DOOR SWITCH
CHECK FOR 240 VOLTS POWER TO AND FROM THE OUTLET FIRST
If you unscrew the 2 screws holding down the control panel on top and lift it up there should be a wiring diagram inside there that is fairly easy to follow.