Does the unit shut off automatically? The unit will shut off automatically once the specified pressure setting has been reached. This will occur when the switch is on the High-Pressure side. You will need to manually turn off the unit when you are Inflating with the High Volume Air Hose. Related articles Why is my machine constantly running? How do I add more pressure beyond my selected “auto shut-off” pressure setting? Can the unit be used to fill up car and truck tires? Does this charger work with my other Sun Joe/ Snow Joe Products? How many washes can SPX3000® Xtream Handle?