What is the back button used for? December 03, 2024 15:36 Updated The back button may be used to navigate to the previous screen. Related articles How do I rename the All-Weather 120V heat pump? How loud is the All-Weather 120V? How is this product any different than a mini-split? My remote stopped working, even after I replaced the batteries, what should I do? What kind of batteries does the remote control take?