I should probably subtitle this "How I Broke My Warranty."   Like many people that bought Linear's GD00Z-4 "Garage Door Opener Remote Accessory," I was surprised when it refused to open my garage door.  How could it not work?  It shows up in my SmartThings app.  The position sensor works when I manually move the door.  When I send a command, the beeper beeps and the strobe light flashes.  Yet my garage door remains stubbornly still.   To make things worse, when I remov...

I should probably subtitle this "How I Broke My Warranty." Like many people that bought Linear's GD00Z-4 "Garage Door Opener Remote Accessory," I was surprised when it refused to open my garage door. How could it not work? It shows up in my SmartThings app. The position sensor works when I manually move the door. When I send a command, the beeper beeps and the strobe light flashes. Yet my garage door remains stubbornly still. To make things worse, when I remov...

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