Do you have the engine running? You need to have sufficient voltage or the controller will stop moving the slide. The engine has to be running, or the coach needs to be plugged into shore power, or have the generator running in order to maintain enough voltage to keep the 3 slide motors moving.
Another possibility is that one of the motors has a loose connection. This happened to me. The connection was repaired, but the Tech had released the motor's brake and then the whole thing had to be re-programmed, and the motors needed to be re-synchronized.
Lastly the controller is shot, and that would be really bad.
I'll attach the full wall slide manual for your info.
Good luck!
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2005 Pace Arrow 36D, UltraPower,
Blue-Ox TigerTrak Front & Back, Koni FSDs,
Safe-T-Plus, Magnum Wires, Scan Gauge II
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