One of my end users had some confusion about why his kit wasn't working. Worked through the issue with him, turned out he mounted it backwards on the garage door.

Good way to find out my documentation is lacking :).

Updated my assembly doc to make it more clear about how to mount it on the garage door. That's definitely a downside to this kit, it requires it to be mounted a very specific way in order for it to detect if the door is open or closed.

Here's my new version:

Previously it said something like make sure the switch is pointed up and stick it on the door.