Hi,
Usually it's the main control board behind your machine that's the culprit when the control panel goes blank.
If you want to verify that--->Locate the J6 connector and measure the voltage between J6-1 (blk/grn) and J6-2 (red/blk) = 12 Volts DC operating voltage for control panel.
For others following your thread--->The main control board is in the back of your refrigerator, there should be a cover over it, just remove the cover screws and cover and you will see it.
Yes, the main control board should fix it then, remember do the programming of it when you get it. Unplug your refrigerator before you install it.
Here's the main control board for your model:
Electronic Control Board WPW10312695
Look here:
My fridge is currently not working. The display on the front went out. I have unplugged it and still nothing. We noticed it had gone out then it came back on a few times just briefly and now does not work at all. I can get no number or lights to come on. The fridge is no longer cooling. The...
www.applianceblog.com
And here:
So woke up this morning to my frig not working properly. The front control panel does not light up. If I press one of the buttons, the whole panel lights up, and if I press the water or ice button, it beeps loudly. Seems like the frig and freezer are also not working. Any ideas?
www.applianceblog.com
Let us know how it goes.