Check all the seams in the slide. In my 3050, FR didn't apply any sealant to the seam on top of the slide, and the seams along the sides weren't sealed at the wall junction, leaving large gaps. They also only used a few fasteners along the top seam... looked like they quit halfway through. Water would seep into that seam, and would show up in puddles all over the place.
Dealer fixed the top seam, but I still went through every square inch of that slide and sealed it properly. Use a good self-leveling silicone sealant too (nuflex 311). Works much better than dicor.