ditto to previous reply. Take a glance at this site:

http://www.peachparts.com/shopforum/showthread.php?threadid=47122&highlight=sampler+blower+motor

The key phrase is: "sampler blower motor." Fast lane sells replacements. I'd try cleaning it out first.

Don't disconnect the unit; you'll have all sorts of grief trying to to regulate the Climate Control System.