Just bought vacuum 2 weeks ago, guests arriving soon RE: suction very very weak...help !

returns are up to the place of purchase. we can not answer that for them. contact the place of purchase.

the suction can not be adjusted.

Check the motor and clean it properly. A very dirt motor will cause no suction or weak suction.
Be sure the motor is running on proper speed, a weak motor will cause a weak suction.
Thanks for asking.

A few weeks ago I ran into the same problem, virtually no suction. First I replaced the bad belt (make sure you fit it right or it'll destroy the belt, luckily I bought 2!) and while the vacuum sounded more "alive" it didn't seem to pick up anything any better. The final solution was taking apart the entire intake port section down to the motor and getting the collection tube. It was filled with junk all the way up. I spent over an hour clearing out gunk and animal fur throughout the tubing. Putting it back together was a cinche because the entire vacuum uses one screw type universally. The whole process was pretty intuitive and its clear it's meant to be taken apart for just this purpose.

1) Have you checked the filter? If it is clogged your suction will be low. Also, you could have a pipe loose where you can't see. Make sure that you can get a coin to go all the way through the hose. make sure the suction motor ( the unit ) is coming on.

2) Call the repair man.

clean the filter abovethe dust cup... and any other filters

even though the belt isnt broken you should replace it also make sure the height is raised up on the nozzle. try dropping a marble through the hose to double check there is nothing stuck ( the attachment hose and the small hose that runs to the floor )

when mine does that I find that the hose is not connected properly where it comes off to use the attachments.
If there is suction there, it is a straight shot to the floor unless it is loose where it fits together.

If only 2 months old, take it for repair as it is under warranty.

Check where there is suction...is there good suction at the hose...at the back of the vacuum. Knowing where there is good suction will help you know where there might be a clog or any resistance. Bissell also has a fairly good customer support line...I believe the phone number might be on the vaccuum possibly in the back.