New to the board, so any post or advice will help.

I was using the LEDrain 38 one night before a show, I ran programs on it and worked perfectly. I left them overnight and came back the day of the show and when I went to turn them on, all of them did but one. I checked the power source and cords, dipswitches and fuse but to no prevail. When I turn it on also it makes a sort of buzzing sound, not loud but can hear it. Don't know if this is a simple fix or not. Any help would be appreciated. Thanks.

The leDrain is a chauvet fixture. This is a American Dj forum. Maybe ask chauvet?
Sincerely,

Sorry...just wanted to see if anyone had a similar problem with any LED like this.

oh no its no problem just thought maybe you were a confused customer. But really it sounds like a very weird and unique issue. I would seriously consider calling chauvet about it.
Welcome to the forums
Sincerely,

Thanks.