I'm all set to print in my recently converted darkroom, all of my own. I supplied it with a Beseler enlarger and accessories, but I can not get my set up to respond to my timer. I guess it would be synchronization between all accessories. Never before discussed in school, does anyone have any trouble shooting ideas? Below is my set up with more details. Beseler 23C ii enlarger Aristo BES 23C Cold light Aristo 1200 Solid State Contactor GraLab 450 Timer (without foot control) I have read the manuals completely for all parts. Everything is plugged into a working power outlet in my cherished studio. The light turns on using the thermo regulator switch on the Aristo cold light. I warm the light according to instructions, then switch "off". My cold light power cord is plugged into the contactor, contactor plugged into the timer, timer is turned on, I hit the start button as if making an exposure on paper, and nothing. ???