Never mind folks, I fixed it myself. Apparently, it had been damaged in shipping. Something that was packed inside of it must have shifted or gotten wedged against the side where the fan is located. I poked thru the holes and determined that the fan blades were tight against the metal, so I was able to get a small 90 degree Allen wrench in there and with some pliers, pull the metal side away from the fan blades. Works great now...!