I Need Your Help EverGrow/Reef Breeders Pros

sawdonkey · Aug 7, 2014

I came home and one of my IT2060s did not have its second channel lit. Also, the fan on that channel is not running. I took it apart and switched the power supplies. The power supply from the non-working white channel worked fine for the blue channel. The problem is not the power supply. I had a spare LCD head unit, so I switched it out. It didn't solve the problem. The problem is not the LCD head unit. Then I began testing the connections with a electrical tester. The attached pic shows what was hot and what was not. The wires going into the power supply on the non-working side were hot. Coming out of the power supply, they were not. I repeat, I switched the power supplies, so that is not the issue. Why would it be hot before the power supply and not hot after if the power supply is not faulty? I'm at a loss. I really appreciate if there are any electrical geniuses on here that could give me some advice. Thanks in advance.

Reefing Madness · Aug 9, 2014

Are you testing both leads together or each seperately to ground? It doesn't make sense that there is 120VAC input and nothing out, that tells me the power supply is dead. I know you swapped them, but did you plug them both in? If theres AC in and nothing out, its the DC side, power supply, no question. Unless when you wiggle the wiring you can get it to fire up, then it would be just a matter of finding the short in the molex.
But, test the AC side, using tester put the leads on the input black and white, not on the ground and other colors
Test DC using the same, not to ground.
Also should be a way to just swap the molex connections and bypass the controll board, thats why i hate those things, they can take out the entire unit. I like dimmers better.