ST garage door opener need go control replacement

Did you try a factory reset (press the reset button for 5+ seconds), it’s brought more than one dead Linear/GoControl garage door controller back to life.

It’s common for these devices to lose it’s connection with the hub especially when they aren’t close, often it will completely stop responding, no beeping nothing. Doing a reset, exclude and then including it again helps reset it.

Also it greatly helps putting it UPS on the device, as it’s very sensitive to voltage fluctuations.