I too got the same messages and went and exchanged the fans and got new ones, then installed them and found that i got the same code. Well i knew then it had to be something i did or didnt do. The usb connector comes with 2 micro usb power cords that plug into the connector and I then changhe to the other micro usb and it worked. Also did this wiuth the power on and didnt hurt anything and made sure it worked. so try both power connectors and the message will go away. Hope this helps