My Hoover Windtunnel is 3 years old. It worked great until yesterday when it lost all suction. I have followed the manual to trouble shoot any possible clogs and could find none. Then I noticed that when I remove the dirt collection cup and held my hand over the vent the suction is fine and strong. So... I replaced the hepa filter thinking that might be the problem. That didnt' work. The motor runs fine. The suction without the dirt cup inserted is strong. As soon as you insert the dirt collection cup both the hose and the floor unit loose suction. Help!!! I really like this vaccuum and cannot figure out what's wrong.I have almost the same exact problem myself. The vacuum has power, and plenty of "wind" but no suction into the bag, or from the detachable wand. I have a Hoover upright, model #U5395-5000 and it takes a Y bag. Does anyone know how to repair it? I've taken it apart down to the motor and removed all of the debris.
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