Why my foos saver is not sealing - FoodSaver Smart Seal Vacuum Sealer V3825

Does it try to vacuum but never flattens the bag? Make sure the bag you are using is completely sealed on the opposite end. Otherwise, the seal on the sealer is probably allowing air to leak into the sealer. If it has a foam sealer, I've found it sometimes helps to run the foam sealer under water, squeeze out the excess water, reinsert the foam sealer (make sure it is seated all the way) and then try again to seal the bag.

Try making a seal with nothing liquid in bag, check seal on bag after. If seal looks good it could just be liquid getting on seal area causing it not to seal. There are tips online on how to help prevent this (example: placing rolled up paper towel sheet). If seal still looks bad than you may have a bad spot on the heat seal wire.

Does it hum as though it's vacuuming? If not, it's probably broken - the vacuum pump is out. It's cheaper to get a new one than attempt to get the old one fixed. If it hums, then replace any hoses you find or the foam around the drip tray.

The heater bar is too hot. Allow it to cool for a while before resuming sealing.

How to fix Food Saver Vacuum Sealer

http://www.instructables.com/answers/How-to-fix-Food-Saver-Vacuum-Sealer/

Try with a different bag ( I have the same problem, the bags are not the same) if still not working, the you have faulty pump

My FoodSaver vac 550 won't turn off after it's done sealing. what does this mean? Can anyone please help me out.

look at the brush box at the top it should have some screws in it (4) undo the screws and lift the top foo the delt is under there
lift the brush roller out to swop the belt but check you fit the roller into its slot right,,,,dont turn the roller end bearings as they have many ways they can fit back in but they need to be set up right first

We discovered we were not moving the bags in far enough to be grabbed properly. After pushing in the bag before closing the unit we found it started sealing properly. This was on an older system, so be sure the bags you're sealling are between the black rubber rectanglar sections before closing the door.

If this is for a canister, be sure the rubber around the lid is seated properly. The rubber can be removed, cleaned and wiped dry. Clean out the lid and dry it too. Reseat the rubber seal and try again... Hope this helps.