This is a picture of the bottom of your disposal. See the little red button. That is your reset button. But before you reset it make sure the switch to the disposal is off. Then just push it in, you should hear a click. If you do, run some water in the sink and turn the switch on. If it works normal you are done. But if it hums for a few seconds then stops again, you have another problem. The motor is stuck, possibly because whatever caused the problem in the first place is still in there or it is just caked up with too many Potato peals. (that should have been thrown in the garbage). So this is what you do.