I used the vaccum with out a bag once and when I put the bag in and started it it would not work. It makes a lot of noise and there is no suction at all.

If it's been over a year since you've replaced the belt that is the first place to start. Stretch belts lose elasticity and will still turn the brush roll but when the brush roll is lowered to the carpet it may not turn fast enough to pick up properly. If you have good suction at the end of the hose check to make sure there is not an obstruction in the tube where the hose goes into the bottom of the vacuum to the brush roll. Make sure your filters are replaced at least once per year and the bag is not full or has a lot of fine powder dust in it which can clog the bag.

There is a blockage somewhere.

1. Put the hose and see if suction is good. If it is - you may have had nozzle installed wrong or brush roll may be worn out (bristles must be sticking out of the nozzle by about 1/8 of an inch).
2. If there is no suction with the hose either - check if bag is not overfilled to the point where dirt is blocking the fill tube hole.
3. If two above are fine - something must be blocking the air passage from the fan to the bag. Check for clogs in the fill tube (tube inside the cloth bag) and mini emptor (bag bottom plastic part) and also see if there is something blocking the exhaust on the vacuum. You may not even see it so use a piece of wire.

GoodVac.com Technician
www.goodvac.com
1-800-775-6586

Sounds like you have some form of an obstruction in the hose ( i once found a tooth pick sideways in mine) most models allow for the hose to be disconnected from the vaccum itself, also make sure theres not a setting for attachments also, some models need the suction redirected.

If the bag full light keeps coming on, you can first try adjusting the dial on top of the vacuum cleaner. If that does not work, then you need to change the control valve. This is an internal component of the canister and is directly below the dial. You will need to follow the instructions on a previous post to open the Electrolux plastic canister vacuum, and remove the bage cage. Once you remove the bage cage you can change the control valve, and this will solve your problem with the bag full indicator.

Take the hose unpluged see vaccum is working or not.
IF NOT.

1. BAG FULL
2. HOSE CLOGGED
3. BELT BROKEN/LOOSEN

There are several filters on bag-less vacuums that need to be cleaned. Dig out your owners manual or open the one below. See section 3 for filters and maintenance. If you are vacuuming a house bigger than about 1500 square feet, you should be cleaning the filters every other use. Personally, after using a bagless for a couple of months, I went back to my bagged vacuum.
http://www.hoover.com/pdfs/manuals/U6630900.pdf

Make sure you put the dirt cone back in the bucket to create the tight seal. You will have no suction without the dirt cone.

Bob
http://evacuumstore.com/

if the motor is truning perfectly without any strange noise,please their be an obstruction suction side

Sounds like yu may have a clog, either in the inlet by the brush roll, or the hose. If the hose comes loose, see if there is suction there. If no suction then it is clogged. If suction, then the inlet maybe clogged.