My garage door system, Genie Chain Glide, opened normally for a while, until now. It will not close, but can go back up. If i use the emergency lever thing, manually close it, and then press the button to make it go back up, it works. But then after it goes all the way up, it won't go back down and just stops. I've tried fixing the sensors, but no blinking lights coming from them (only when I move my hand in front of them) , appearing as though they are fine.
Any suggestions?
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