Interesting as I had the same exact issue. When I called the support person they said the startup valve was bad. They are sending me a replacement. It would be nice to find the source of the valve for future reference. My lift is a 2020 model with very little use. Hard to believe a valve...
I have an Advantage 4 post lift. I also purchased the manual scissors lift which works fine. I am in the process of installing LED lighting to rolling jack channels. I have purchased aluminum 45 degree corner channels. Here are the sources and products I am using...