DOES NOT VACUUM NOW

Several possible problems:
1) Did you clean the blue lower pickup container (dirty water) before putting it away?
Take out the pickup container and open it up, check the filter (under the little blue piece on top) and also open up the container itself and clean under the flapper on the "screen".
2) Look inside the housing and check the vac hose that goes from the front of the unit up to the rubber grommet where it goes into the lower pickup container. Is it clogged? If yes, take off the front pickup (the part the runs along the floor in front of the rotating brushes) and run a very narrow lint pickup brush (like for cleaning dryer vents) and clean out the hose. It works great.
3) Check the front pickup for clogs and clean
4) If you are trying to pick up water, make sure the setting is set to wet. If you are trying to use it as a vacuum, set it to dry.

Hope this helps.