I had the same issue. When I inspected the hose at the base of the beater bar, it had completely cracked, wide open. It is a fatal flaw on this model of vacuum. We are currently attempting to replace the hose, it is a royal pain in the bum. The only solution Shark had for this issue, was to replace the whole beater bar. I’m not willing to do that, it will just happen again. Check that hose at the base and see if that is the issue. Hope you find a solution.