Vacuum bags — magnetic vs mechanical door interlock feel

Vacuum lost suction after a bag change is often a door that almost closed. Some canisters use a magnetic catch; others need a mechanical tab click. Match the feel so vacuum bags actually seal.

Magnetic vs mechanical interlock on vacuum bag doors

1. Power off. Seat the exact bag type with the cardboard collar fully home.
2. Close the door slowly: a magnetic interlock pulls shut with a soft thud; a mechanical latch needs a firm click on one or both sides.
3. Run a finger along the door gap — a hairline open edge means the interlock did not take, even if the bag looks seated.
4. Only then chase exhaust filters if suction is still weak with a confirmed sealed door and fresh bag.

Do not tape a door shut to “fix the magnet.” Fix seating or replace a broken latch so the interlock works as designed.

More help

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• Related fixes elsewhere: Close the vacuum bag door until the interlock clicks · Full vacuum bag bellows can hold the door ajar