To stop a PS5 overheating, give it 4–6 inches of clearance on all sides, keep it out of enclosed cabinets, and clean dust from the vents and fan…
This is the number one cause and the easiest to fix.
Dust is the silent killer.
If the console is clean and well-placed but still runs warmer than you'd like, you can tell it to run the fan more aggressively.
This one is for confident, out-of-warranty owners only.
Read the complete breakdown, fixes and what happens next.