Loud Fans on yet another XPS 15 9570

Hello, I recently swapped out my Dell XPS 15 9570, 32gb, 1 tb laptop at the Microsoft Store because of loud fans that constantly stay on. On the new computer, the fans came on before connecting to the internet and stayed on. I currently have 2 tabs of Chrome and 3 tabs of Microsoft Edge open. There are no updates downloading or installing in the background. The fans haven't turned off since they first turned on almost immediately after the Cortana setup screen. The computer doesn't feel hot at all, so why won't the fans turn off? Why are they even on in the first place? According to the Task manager, the CPU usage is at 2%, memory is at 20%, Disk is at 0%, Network is at 0%, and GPU is at 3%. Is it normal for the fans to be constantly running with the above usage? I haven't even began to do anything CPU intensive yet. One of the Dell representatives on this forum stated that the slim chassis of the machine causes the fans to run but are they really supposed to be on all of the time, when doing absolutely nothing? Is this truly have the 9570 is designed? I've even tried closing everything and letting my computer sit idly, and they still don't turn off. What could possibly be going on? I know this cant be right and want to swap it for one that performs correctly but the people at the Microsoft Store are beginning to treat me with hostility whenever I show up to swap out the machine.