When I went out yesterday morning and plugged the "eyebrow" panel back in, the damn thing came on. It cooled all day until about 3PM and I walked by and heard it click in the control panel again....went inside and the eyebrow (Optical) panel was blank again?!? I pulled it out/plugged it in/messed with it but nothing. Left it unplugged all night.
This morning I plugged it back in, and it came on again!! I spent the morning tracking down another eyebrow/optical control panel from one of the RV shops and now I 'm just waiting on it to do it again. I'm pretty sure this is that control board, as when it comes on, it's working totally fine, cooling normal and has NO error codes. I'll update when/if it stops again, and what happens with the replacement board.