LG refrigerator LFX25960SB - ERCO displays on screen. Tried all the tricks about reseating the connections looking for any pinched or broken wires at the top of the door hinge.
After resetting / reseating the connections it goes back to normal for about 30 seconds (sigh of brief relief) then back to its old ways.
I was told by the customer that these parts have been replaced by a previous tech (note this unit was bought used)
Main control board:
User control display
The only thing left is this little guy:
I hate to guess but I don't know how to test for this kind of application.