When I installed mine at first it did the same. What happened in my case was I had the LEDs and optos installed wrong. He ships them not inserted so they don't get damaged in transit. Check his web site and align your LEDs and optos the same way you see in the pictures he has. There is a little notched side on the optos that need to be installed facing a certain way (outward if I recall correct) and same with the LEDs. If their not all in correctly, it will fail. Also, be sure the optos are inserted all the way.
I think its great that this board is modular like it is. All the parts are removable and can easily be replaced if a component goes bad. Also, my first impression of this board is that it was built like a tank and I feel comfortable that it will be the last clock board you would ever have to purchase. These guys appear to make some good quality stuff.
Contact Ingo, he's gets back to you pretty quick and seems to be a good guy.
Attached a couple of pics for those interested in this board. It comes with white LEDs (modular) and I picked up and extra set of blue for mine. Looks great.
Edit: my pics do this no justice.
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