Disposal makes a humming noise when switched on but the grinding plate does not turn.

Safety first: Turn OFF the wall switch and shut OFF the breaker. Never put your hand into the disposal.

• Reset overload: Press the red reset button on the bottom of the American Standard unit.
• Manually free jam:
  • Insert a 1/4" Allen wrench into the bottom hex socket (if provided) and work it back and forth.
  • If no hex socket, insert a wooden broom handle from the top and push the turntable clockwise and counterclockwise.
• Remove debris: Use tongs or pliers to remove bones, utensils, or other objects from the chamber.
• Test with water: Restore power, run cold water, and briefly turn the unit on. If it spins freely, let it run for 30 seconds to clear remaining debris.
• Still hums only: If the rotor will not turn even by hand, the motor may be seized and the disposal should be replaced.