Weston HARVEST GUARD 65-1101-W Manuel D'instructions page 15

Q: The Vacuum Pump starts, but no air is being remove from the
vacuum bag.
1. For the best results, always use Weston
brand vacuum bags.
Figure 6
2. Be sure that the bag is inserted properly.
The open end of the bag should be
centered within the Oval Vacuum Seals.
Vacuum
Be sure not to cover the Vacuum Port
Port
opening (Figure 6).
3. The bag may have a leak. If there is a
leak in the bag, air will be pulled into the
bag from the outside. Check for tears or
punctures. If you are using a bag that was
made from a roll of material, double check
that the seal on the end of the bag is welded
closed.
Leave 2"
Seal
4. If none of the above steps remedy the
Space
situation, contact Customer Service.
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