strube, I ran the search engine a couple times. Interestingly, there is some "long screw" issue. Uh, I think it might be the feet screws that could be too long when the feet are removed (for putting on mount, etc), but since your feet are most certainly still on, I doubt this is the case.
IF* these are the screws that represent the long screw issue, they are said to press against some plastic, or other structure, that somehow might cause overheating.
The above are just topical impressions (assuming I've read correctly), could be wrong, but might as well post them.
Searching "temperature" is difficult, because of "color temp". No hits on "temperature sensor".
I'm afraid this unit is most likely going back. I hope they do you right. It's really strange to me that this wasn't QC'd.
*to septim, I'm glad you like it! You are not too disappointed with motion, seeing that you were before using FI + game mode? I've even read that the RS1 might be better with motion that the RS2 today, while running searches.