I hate working on these Fragramatics vacuums. The vacuums have 6 special screws to unlock the top and everything is just so crammed in there. One of the vacuum motors was not working so I had to remove the motor to check the brushes. The brushes were fine but a fuse was blown. I will check the fuse first next time. Even though 2 out of the 3 motors worked, you can still tell there is a problem.
Clean out that muck!! That motor brush dust is conductive, and will fry your motors and, well, anything else it can!
Kill ALL power sources to the vac, put on a dust mask, grab a blowgun from your air compressor, and use a stiff brush to dislodge crap. It’ll be messy, but worth it.
Just for the record, I’ve never used a *working* Fragramatics here in Miami. They’re always either anemic, or they just go *click*… and do not suck. Or rather, I guess this would mean they do suck, but not in the right way.