I have had the red flashing light happen if I push "Hitch Height" and then I press it again before it starts. There is a delay before things start so it's easy to think it isn't working and you press it again causing the error. Give it a minute to start. Here's another thing to remember if you have a similar situation as I do. After unhooking where I keep my RV at the house, I have to manually lower the front legs in order to raise the rear of the RV so I can get the appropriate number of Lynx levelers under the jacks before "Auto Leveling". If I don't do that, I risk an out of stroke error. So when I'm going to hitch up and I press the "Hitch Height" button, the rear legs and stabilizers raise but the front legs will only raise to where they were when I pressed the "Auto Level" button. It doesn't go to where I unhitched. The system remembers the last position the front was at when you press "Auto Level". So I then manually raise the front legs to get to where I need to be to hitch up. The more you play with the buttons and figure out how everything works, the clearer it becomes. My main panel is all digital and touchscreen which I'm not a fan of. I'd rather have the buttons instead of having to scroll through menus to find what I want to do.