Hi, I have confussion about how fan should work and if is the real issue. My PS4 starts to be overheated, sound 3 beep and turns off, realized fan wasn't working. At power it on time, do some spins and stop, should be spinning always or just when need be cooled?. Tried other fan from other PS4 bought for parts and same response, just want to know if is normal behaviour, if fan not right do some spins and then stop to buy new one on eBay or could be other hardware issue. Thanks in advance.