I replaced my worm gears because I had snapped off the sprocket shaft. After installing everything, I was ready to just give it a try w/o the chain first. It moves 18" one way then automatically moves the other way the same 18" w/o me touching the remote. The sensors are working fine. When I'm in front of them, the GDO blinks and the doors moves up slightly. I have adjusted the limits but to now awail.
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