If pressing the reset button does not stop the humming or start the motor, it means the thermal overload button is tripping because a physical mechanical jam is still locking the disposal's flywheel. Pressing the reset button alone will not clear a jammed object. You must manually unjam the unit. Callout type="warning" title="Electrical Safety Warning": Disconnect power before working under the sink. Insert a 1/4-inch hex wrench into the bottom motor socket and turn it back and forth to dislodge the jam. Verification: Test the wall switch after clearing the jam to confirm normal motor operation.
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