Tilia Foodsaver V835 Vacuum Sealer "replace sealing strip" Questions

...like it will 'catch' the lid closed when it is vacuuming, and then open it after the sealing strip has heated.  When it wasn't working the motor would only run as long as I pushed the lid

...strip should be controlled by the circuit board due to low voltage and the vacuum motor is either stepped down to 12 volts or direct 110v. Your best bet is to follow the circuit from source going ...