Locate each of the two screws on the edges of the bottom grill vent.
Unscrew the screws on the vent by using a Phillips screwdriver.
Pull the vent off and replace it with the new vent.
Insert the two screws back into place, and then screw them back in.
Unplug the refrigerator from the electrical outlet and then scoot the refrigerator away from the back wall.
Locate the screws along the bottom vent panel. The bottom panel is a cardboard material with screws along the edges that hold it in place.
Remove the panel and replace it with the new one.
Insert the screws back into place and then screw them back in.
Plug the refrigerator back into the electrical outlet and move it back into place.