There is plenty that Forest River doesn't check, believe me.
When they installed the bottom rail for my shower door, they installed it backwards so the drain holes were facing the bathroom floor. They only fixed it after I became a downright pain in the @$$.
I suggest that you do the same.
Oh yeah, and when you take your camper in to the dealer, make sure you keep your power cable, mine was stolen, and they didn't want to replace that either.
But, again, after I rose holy hell about it, they replaced it.