Generally, the problem is that the belt is not running the brushes. This is caused by one of the following:
Clogs are not the problem here. Inspect and resolve the above. Use a new belt. Never reuse this one.
Ok...with the vacuum on and the hose in your hand checking for suction, try pushing the cover that is over the bag against the unit,,,sometimes there is a leak and it doesnt give any suction...
You still have a clog in there something is keeping the brushes from spinning. Be sure to remove any hair/string etc twisted around the brushes. Make sure the belt hasn't slipped off the metal pin behind the brushes, this is what creates the rotation. The brushes have a hard plastic molding on each end that fit into the sides of the vacuum. Make sure you have these on the right way or they will strip out and you have to replace the housing and the brushes. Have you cleared any blockages from the feed behind the brushes? Be sure to take the hose and extend it out and run a broom handle or something down it to be sure you do not have something lodged in there. Good luck .. if you need more detail post back. These can be rebuilt if needed, hopefully it is just something lodged further down the suction canal.
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no suction at base but ext hose has great suction ..took out brush roller and can't find clog in bottom pipe, brush does spin when on
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