We have different units but my wardrobe slide is BAL Norco Accu Slide that uses a worm gear motor/box and cables. I am now replacing a bad gearbox which takes about 20 minutes, it took much longer for me to figure the type of unit I have and how to fix it, thank you YouTube
On this type of slide there is a cable to insert into motor or gearbox and other end in a drill can move the slide in/out manually. Also easy to disconnect the cable system to move it in manually if I ever have to.
I suggest checking your documentation and/or manufacturer to know the type of slides you have then spend time on youtube to understand them better. I had no previous experience with mine then after researching a bit I can replace the motor, gearbox, adjust cables and other minor repairs.