14+ years of experience in manufacturing kitchen appliances, is a professional food vacuum sealer manufacturer.
Why does my vacuum sealer keep pumping non-stop?
A vacuum sealer that won’t stop pumping is often due to two easily overlooked sealing issues:
1. Damaged sealing gasket from prolonged pressure
The sealing gasket, a key component that prevents air leakage, can age, deform, or crack if the machine stays in use too long or the lever isn’t reset after use. A damaged gasket lets air seep in, so the sensor never detects enough vacuum, making the machine run continuously.
Solution: Replace worn gaskets and lift the lever after use to keep the gasket relaxed.
Bags with tiny holes, folded seals, oily/wet openings, or that are too large (exceeding the sealing area) leak air. This stops the bag from reaching the required vacuum, causing non-stop pumping.
Solution: 1.Use undamaged bags, clean bag openings, and ensure they fit within the sealing area.
2.If making a bag from a Roll, make sure one end of the bag is sealed.
Check these two issues first—most problems are solved with a new gasket or proper bag handling. Good sealing is key to a working vacuum sealer.
