[johnkosir]

There are many different ways to trouble shoot things, most of them work, my approach is a little different from Richards, I would follow the wires from the fan back to the board and see if there is 120 volts going to the fan motor, if the fan is off on thermal overload the motor will be so hot you will not be able to touch it, if you spin the motor and it starts running the capacitor is bad, if there is no power to the fan motor you could put 120 to it let it run and you will have ac until you can fix it, just let the motor run