Checked Salvajor Disposer unit, found thermal overload tripped. reset and tested to see if I could move by hand. it was locked up. uninstalled and removed lid. got to move, couldn't find anything stuck in teeth. moved back and forth for awhile and got semi free. When I reinstalled and tested made a load noise and was dragging. Unit is no good, sounds like bearings and windings are making noise. Unit down, should be replaced. Per Cathy quote new unit installed.