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Let me start out by saying I have tried every single suggestion previously suggested but nothing has worked. What's different about my situation is it works fine for the first 10 seconds and then it makes a noise like a baffle is closing and then it loses suction I turn it off and turn it back on the suction comes back on but again 10 seconds later it stops or if I go over a bump it stops it's impossible to use someone had mentioned once about like the master suction like losing its prime or something like that does anybody know what that is? it sounds to me like a baffle is closing, kind of a "fwap" sound but I can't find anything to clean or adjust.