I would check the wiring harness. I have a Weider Platinum WESY78732 and have had issues with wires coming off of the motor. I ended up putting an automotive (female) spade connector on the end and squeezing it with pliers to keep it on there tighter. A lot of these Weider Home Gyms have wiring issues.
I bought two of these. The main problem with these units is the motor burning out, and that happens because Weider uses a heavy grease on the threaded spindle/shaft the motor turns and it becomes gummy. Your motor may be stopping because it can't push past the grease, and it might also be overheating. There is likely an overheat protector in the motor that will reset after it cools down. If you want to destroy the motor, keep operating it with the heavy grease on it. The solution is to take the back cover off and use a degreaser like wd-40 to completely remove all of the black grease from the mechanism. It is better if you actually disassemble the part that moves along the threaded shaft and threaded shaft if possible to get all of the grease out. Once it is totally clean, then use a synthetic motor oil on it, dripping a few drops on the part that slides on the threaded shaft and a few drops over the shaft itself. Then operate the weight from one end to the other to get the shaft coated with oil. Once a year, add a couple of drops of oil. After doing this repair, you will never have any more motor problems.
Also, the motor position is kept track of by counting rotations of the shaft. You need to reset this using the procedure in the book. It will take the system all the way to one end of the travel stop in the process.
Answers & Comments
I would check the wiring harness. I have a Weider Platinum WESY78732 and have had issues with wires coming off of the motor. I ended up putting an automotive (female) spade connector on the end and squeezing it with pliers to keep it on there tighter. A lot of these Weider Home Gyms have wiring issues.
I bought two of these. The main problem with these units is the motor burning out, and that happens because Weider uses a heavy grease on the threaded spindle/shaft the motor turns and it becomes gummy. Your motor may be stopping because it can't push past the grease, and it might also be overheating. There is likely an overheat protector in the motor that will reset after it cools down. If you want to destroy the motor, keep operating it with the heavy grease on it. The solution is to take the back cover off and use a degreaser like wd-40 to completely remove all of the black grease from the mechanism. It is better if you actually disassemble the part that moves along the threaded shaft and threaded shaft if possible to get all of the grease out. Once it is totally clean, then use a synthetic motor oil on it, dripping a few drops on the part that slides on the threaded shaft and a few drops over the shaft itself. Then operate the weight from one end to the other to get the shaft coated with oil. Once a year, add a couple of drops of oil. After doing this repair, you will never have any more motor problems.
Also, the motor position is kept track of by counting rotations of the shaft. You need to reset this using the procedure in the book. It will take the system all the way to one end of the travel stop in the process.