dmwardjr ot toptek or anyone else,
After getting the wrong fan ( 3,9 A ), I connect fan directly to PSU ( over MOLEX ). Fan is starting OK, but S5, doesn't start to hash and I get red light back on S5. It was turned off completly from power for a week.
Is it burned ?
See picture below.


Everthing seem normal, except red light and no hashing.
Solutions ? Do I buy recommended fan from toptek ?
Did you hard ware reset it or re flash the firmware to try and fix it , if not make sure to only use the firmware off bitmains site . but hard ware reset it first . turning it off with out a reset may not do it .
If you look at the front of it nere the red light is a hole thats says reset , stick a small pin or nail in the there till it beeps a few times while it turns red then turn if off unplug it wait 30 mins then plug it back in . what that does it reset the miner to defaults . it may all so change the miners IP . if that doesn't work on the back of the controller is a black button that does a hard ware reset to but it's harder to reset that way but works to you have to play with it some that way or it seemed to reset that way for me once or 2s .
AS dog said plug the stock fan back in .