I have a DFC1000AAX-1 and it stopped working. When I apply power to the unit I can hear a humming noise coming from the unit and then the reset button on the bottom of the unit pops out. I checked for debris, but I didn't find anything stuck inside the unit. I am going to take the unit apart tonight and was wondering if there is anything I should look for to know if the motor is still good or not. Thanks, Aaron