Fridge isn't cooling, husband thinks board is bad. Couldn't find link for our model #.

Holly,
The part number for the board that matches your model number is WR55X10942 and is a pretty straightforward repair if that is in fact the problem. I’ve attached a video below with some diagnostics as well for you to look at. I’m also giving you the part link if you haven’t purchased a new board already. Hope this helps!