My bedroom slide on my 2015 3625RE stopped moving, made a loud grinding noise after moving a few inches. After reviewing some helpful videos on youtube I discovered that the gear box has been a known problem with older models. Just to give a little advise out there, it was very simple. Look at the instructions and videos for the BAL Accu slide system. One tip, only loosen the middle bolt in the chain/cable connector. Don't even back off the stop nut, this way when replacing it you know exactly where to stop and back at your original settings. Also make sure you order same motor, there are different ones out there that have more torque.
Check this link for good info where to find motor and other info.
https://youtu.be/mUCXDer5HRI
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