Chain Does Not Receive Commands From App or PMS
If you installed Chain and manual mode is working well, also you get true positions of Chain in App, but when you click lower or extend nothing is happening, please try next:
On Parklio Brain device disconnect wire from - (minus, red on picture) and connect it to COM port (green on picture). This will resolve issue.
You can also find a photo of the wiring ports needed to change the position on the Parklio Brain (if it doesn't receive commands from the APP or PMS) at the following link: