rimai wrote:That shouldn't affect the dimming signal.
Can you send me a photo of your box?

Let me know if you need any other angles:

You definitely have one of the older models of relay box.
At that time, the PWM booster was an optional item. If you did not purchased it, you will not get the signal out to the ports.
Can you open the box and see which board revision you have?

Ok, I've got the box open... but not sure what I am looking at as far as getting you a board revision.

Ok, good.
I can tell it will be very simple fix.
We need to add the PWM booster add-on board to your box.
It goes into the header pins located close to the dimming ports.
PM me for details on how to get one.