hello there, can anyone help me, plse..? i have an upright Hoover 2000w vacuum cleaner that won't pick up. ..if i take the hose out and use that with an attachment it works perfect, but put it back into the base and nothing! i have cleaned the brush roll, all is fine there, bag's clean and empty, filter is good. i can''t afford to 'get a man in'. ive got 3 rescue dogs and a cat,, so you can imagine the hair.. anyone..? tku in anticipation, chrissy x