Will my unit shut off if it runs out of water? January 09, 2023 17:14 Updated Yes! all Crane units have an automatic shut off that powers the unit off when it runs out of water. Related articles How do I clean my humidifier? Do Crane humidifiers contain BPA or phthalate in the plastic? How do I get replacement parts? Why is there condensation on the windows? How do I start my humidifier?