If it sounds like the motor is still trying to turn but can't, it may be that the object(s) have bound up the motor. It is pretty easy to remove the screws from the bottom of the power head to seperate the top from the bottom and remove any obstructions. If the motor is burned out it can be replaced for $45 from midamerica vac. http://www.midamericavacuum.com
Jeff H, January 2007