Jesse, sounds like the problem is in the motor rather than the switch assuming you don't have a voltage problem eg. long small guage extention cord. Assuming voltage is ok, either the starting capacitor or the centrifugal switch (which switches in the capactor to start the motor, then switches it out when it's up to speed) may have died. Since the switch is mechanical, it's most likely to go bad. You can pull the motor end cap off and see if you can fix it; it may be packed with sawdust. If you're not feeling that brave, you can take it to a motor shop, but new motor might not be a bad idea depending on the general condition.