Front Ice Maker Display Flashing and Ice Maker Door Flapping Open and Closed

I firts pulled the refrigerator away from the wall. Un plugged it and removed a metal cover off of the back of the fridge. A clear plastic container was behind the metal pael. Removed the connectors and snapped the pld board out, Put in the new one and reinstalled the cover. Had to get the code number from theinside of the frifge and entered it into the front key pad. This step took a bit of figuring to advance the numbers using the key pad but with some trial and error...Repair done.