KORAD KA3005D-3S overvolting fans ?

[xani]

So I have that power supply (looks like 2x  KA3005D glued together) and I had fan fail on me.

So I tore it down, removed the fan and lo and behold it literally melted. It was just basic 12V/0.18A fan. That got me curious so I measured voltage going to it and it was... 28V 

So I'm thinking, "right, probably some shoddy start circuit making sure that fan actually starts spinning".

After that I've connected electronic load to it and lo and behold, still 20V at 0.5A, 18V at 1A !

After that I've cut the second, barely working fan, spliced multimeter in and sure enough, 0.5A to poor tiny 12V/0.18A fan.

That would certainy explain why so many people were replacing them 

Can anyone confirm whether newer models have that problem ?