If you have the type with the swinteck system I would find a good service department and let them check it out. I have a 2012 crossroads cruiser 330ss had a lot of problems with the bedroom slide went thru several service departments before finding one that was able to isolate the problem related to a water leak and fix the problem and that also entailed changing out both motors and the entire h- system. Spent several hours on the phone with crossroads and Lippert trying to synchronize the slide motors, adding a battery, new batteries etc. hope this helps and let us know what the final problem and solution is.
