We have a GoControl garage door opener that we've been using for a couple of years now. Today we were locked out of the house for the first time because of an confluence of circumstances.
We went out for a run and used a Garmin watch app to close the door via an endpoint on Hubitat. On the way back we noticed the power had gone out in our neighborhood area. Fortunately (or so we thought), the power came on a couple of minutes after we got home. However, the remote garage door open function never recovered. We had to go get our spare key from a neighbor.
Turns out that the power failure puts the door state for the GoControl into an unknown state. It won't accept any remote commands until the door has been opened manually. I confirmed this by unplugging the controller power, and observing the same state and behavior when plugging it back in. The door state changes from unknown to open only when I open the door using the wall mounted button. The controller ignores any open or close commands from Hubitat.
Is there any secret parameters that folks are aware of, where I can set the controller to a known state when it starts up? Or make it assume it is closed when the power comes back on?
Yep that is standard. I used the Iris branded go control GDOs for years. Happened every time the power went out. It was never a problem as I always had the remote in the truck. My garage door openers at my current house were about 15 years old and the one to my garage stopped working with remotes. I tried several and it would not pair to any of them. So I depended on the GDO to open it. I ended up replacing them with a Zen16s and a Ecolink tilt sensors. Much more reliable IMO
I just tested this with my GD00Z-8-GCs. Following power failure, they correctly report contact status (open or closed), but it marks the door status as unknown. As you noted, the Linear will not operate the door until the tilt sensor changes state by the door being opened or close. It doesn't appear to matter if the door is opened by hand or by the motor, either with a contact closure or a transmitter.
So, a little bit of research later, it turns out that this is vaguely documented in the Linear manual. The Linear is sending notification 0x45, which is "UL Lockout". Presumably this refers to this UL safety standard that requires the door to be operated "locally" to end the lockout. Given that Linear have done this in what they believe is adherence to a UL safety standard, I very seriously doubt there is any way to override it.
