PS5 beeping three times and shutting down

Hey guys, my PS5 has now done this twice - beeping three times and then shutting off. It happened in the same game, at the same point. I went to feel the PS5 afterwards since I thought it might be due to overheating and it did feel pretty warm despite only running half an hour.

Unfortunately it is very hot right now where I live, AC is not an option but the room temp is 78 F/26 C. That obviously doesn't make things better for my poor PS5. I used to not get overheating warnings often and I did clean the vents, but its been very superficial cleaning at most. I have yet to actually take out the fan, and when I remove the plates to look at the fan I can definitely see dust build up at the blades, and presumably also the heat sink though I can't really see that.

What do you guys think, this is pretty much exclusively due to overheating from the dust and the high room temp right? Or should I drop it off for repairs?