My guess is that the dealer is clueless! They are experts at stalling. I bet no parts are needed. You stated it went out to the limits and came in to the stop. What could be broken. Call Forest River customer service and ask for authorization for service.
Find a mobile tech in your area and explain the problem to him on the phone. Ask if he has experience with slides. If he is experienced should be able to fix your problem in under an hour. Don’t let one who says “I think I can” even come out. The slider WILL get out of adjustment going down the road if it was not sufficiently tightened. Mine did. On the ends of the slide out arms are adjustment plates to level the slide. See the BIG bolts. Lippert techs at Goshen showed me how they adjust. By placing some blocks and a hydraulic jack under the slide you can adjust it to level. Once they are correct your problem should not reoccur. Slides are not difficult when you understand how they work. (Think about who manufactures, installs, works at the dealership, not rocket scientists.) I changed a gear pack under mine successfully. I hope you get the problem fixed guickly. Good luck.
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