Thanks for answering.
I did things out of order. I already sent the display in to be repaired/rebuilt, when that didn’t work I replaced the power relay. That worked for about a month. I am going to replace the power board again and check the wiring. Are you saying that the “dimming” is related to the display (not the power relay) and I should send it off to get repaired/rebuilt again?
If another display worked with the GSC30CV, I would love to get a new one instead of having to deal with sending in the part to get repaired.