Frustrations with Linear GD00Z-4 garage door control

[TonyFleisher]

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Linear Garage Door Opener Stopped Working

Ok, I’ll reply to my own message I took the unit apart today and poked around. I’m pretty sure the relay was fine, obviously the zwave module and tilt sensor seemed fine too based on accurate door status and always responding to ST requests with beeping. I still found it interesting that the module would respond to successive open or close requests with no time delay - as if the module knew it had not opened or closed the door. I think the module can sense the LED operation (voltage across led within some range, it seems) and mine may have failed. I presume the LS testpoint is the feedback path from the LED to the micro. I pulled the LED off the board and did some measurements, the drive appeared to work ok, and pushed out 1 amp from what I believe to be a constant curr…