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 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? Why is my machine constantly running? Does this charger work with my other Sun Joe/ Snow Joe Products? How many washes can SPX3000® Xtream Handle?