in the past
the VP112S
has had some issues in getting the top set just right for the Vac
its mull hinged.
take some time to look into getting the top to sit just right
and make sure your settings for the seal are appropriate to the thickness of your bags
good luck
note the hinge system
it might be your problem
as it needs to set ' just right '
BTW others on this thread in the past has had trouble w this model i think
due to the complex hinges and setting the top just right
before the Vac does its Vac'ing
