FoodSaver Food Saver V3835 Vacuum Sealer Regular & Wide Mouth Jar Sealers Access "sealers tray full" Questions

...alcohol on a q-tip, cleaned the contacts on the tray and in the tray it fit into and then it went off! Now it works just fine. Guess the contacts were dirty & it thought the tray was still

tray full light won't go off & the tray is empty Have the same problem. I'm looking for a solution too. The tray is dry and clean as a whistle. I cleaned all elect. connections and even dryed it all ...