[acondit]

I would use a Volt-Ohm meter set to voltage. Since the pilot light is not coming on, I would first check to see that I had 110v to the transformer primaries.

Then I would check the voltage at the DC (+ and -) connections of the rectifier then I would also check the voltage at the Geckos (pins 1 & 2). I would also check the voltage at the Geckos pins 7 and 10.

I am a little concerned about part of your logic supply voltage coming from the USB (from the computer) and part coming from the BOB's isolated 5v supply. I would tend to use the BOB's supply for both pins 7 and 10.

Alan