1993 Plymouth Voyager Cooling Fan

The other day my car overheated and I noticed the fan wasn't running. I removed the fan and found that the motor has something inside (some part of the motor is moving around inside there) that prevents it moving freely. I replaced the fan with one from a salvage yard. They tested it at the yard and it worked. I installed but it won't come on even when I run the engine until it is quite hot--beyond the temp at which the fan would normally come on. Is there a fuse or relay some place that might have gone bad when the old fan became jammed? Thanks.