Chunch

Hi I don't know if anyone else has had this issue, but I have 2 Swafan EX14 RGB connected in my system via the Thermaltake controller, 1 of them works a treat, I can see the fan speeds, change colours and styles of LED (Static, pulse etc) but the other one, in the exact same controller just refuses to do anything with the LED's, it just does the rainbow swirl that is default. I had to play around just to get the first fan working correctly but can't see how or why the second one isn't right....