I have 4 ColorSource Spot Deep Blue lights. One light is only producing white lite. I can't get it to display any other colors. The other 3 Spots all do fine but only this one that won't. Could there be a setting on the fixture that is keeping it in some kind of white mode?
You should check what mode your light is set to. You might be in 1-channel mode.
The ColorSource® Spot Installation Guide has the infos how to change it on page 7 of 12