Why is my vacuum cleaner blowing instead of sucking?

Take the hose out of the exhaust and plug it into the suction port.

"Vacuums use AC motors that aren't (easily) reversible, so it's likely nothing particularly serious. All vacuums have an air inlet and outlet - normally the inlet is at the power head and the outlet is in around the bag/filter unit. Some vacuums have hoses that connect to the blower motor, one for inlet one for outlet. It sounds like your Bissell has this and he flipped these around so that it's now pulling through the filter and blowing out the power head.

Make him vacuum for a week as punishment."

There is no way to “flip these hoses around”. I have the same problem. Air is being blown OUT of the canister INTO the hose and down to the bottom.

That’s right. This issue should not be marked as solved. I’ve cleaned out my vacuum thoroughly of all clogs (I can literally see straight through every hose (including the tiny one that’s a connector to the hose, from the very bottom, that’s screwed in.) and there’s no switch seen anywhere, to blow it out instead, nor any way to reverse the hose. Now what?

Why is my black and decker stick vacuum blowing instead of sucking? I’ve just bought new filters and it’s still doing the same. I’ve taken everything apart and everything is clean