Might have a problem with the slide

I just took delivery on a 2016 274DBH. I love this trailer. Nice upgrade from the Gulf Breeze. Have not been camping in it yet but we are going out for manorial day. One and hopefully only one problem I have found is when I sit the switch for the slide and it get fully extended or fully retracted it starts to grind. Are the motors out of adjustment???

Any help would be great. I don't want to take it back just yet in fear that they will have it over manorial day weekend.