Aporte original por: teardown-er ,
Since the motor is likely powered by DC current (and any system controls such as the display need DC current as well), there should be a transformer inside of your treadmill. This transformer board was likely fried because of the higher voltage. The burning smell you experienced was likely caused by either a wire burning, or a capacitor/diode breaking. It is possible that not only the transformer was broken, but the motor as well, however; replacing the transformer is the first logical step.