The 3 most common part(s) or condition(s) which cause the symptom Garbage disposer stopper switch won't turn on disposer are listed below starting with the most likely. Check or test each item and watch any available videos.
To see parts for your garbage disposer, you need to enter your model number on the right. The system will then display parts that are associated with your garbage disposer.
The stopper activates the start switch which is mounted into the upper housing of the garbage disposer. If the disposer does not turn on with the stopper the switch might be defective. The start switch can be checked for continuity and replaced if necessary.
If the garbage disposer stopper switch won't turn on the disposer and the home also has a wall switch which provides power to the disposer, the wall switch might be defective.
If the garbage disposer stopper switch won't turn on the disposer the batchfeed stopper might be defective.