How to factory reset the V513 / V553 chamber vacuum sealers
After each power-on, all function parameters will default to the last user settings. To restore factory settings, follow these steps:
In standby mode, press the Smart Vac button. The display will show “AU ”. Then press and hold the ▲ button for 5 seconds until the display shows “rS ” (Reset). The machine will now restore all settings to the factory defaults while in standby mode.