Welcome to RV-ing
. Our leak was on the refridge slide, it ran all the way down from corner of slide to the wall of the hutch around the stove...caulk is an rvers best friend. Look for a teeny tiny cut or pin prick, our was a tiny cut that DT tried to patch. Take into consideration that H2O takes the path of least resistance. Check all caulking seams, could be on one side and run to the other. Caulk outside all seams around i.e. a/c, vent caps, antenna, etc.
Really sorry to hear about your experience...we all feel for you. Make sure when you get to dealer/factory that they replace any insulation, etc. that got wet.
We also had a basement leak and had the dealer replace all insulation that was wet. You do not want any mold growing in walls, etc. Keep us updated we really are sorry this happened.