Move your Kenmore 106 model refrigerator away from the wall, then unplug the power cord out of the wall outlet.
Open your refrigerator door, then remove all of the food from the top two shelves.
Locate the white, plastic and square air diffuser cover on the top left corner inside the refrigerator.
Remove the two screws holding the diffuser cover in place using a Phillips screwdriver, then the remove cover. The air diffuser part is now visible.
Push the front of the diffuser in to disengage it, then pull out the diffuser to disconnect it from the refrigerator.
Inspect the air diffuser part for any damage, such as cracked, broken or worn pieces on the part, and replace the part with a new one, if necessary.
Insert the new air diffuser part into the same position inside the refrigerator, and press down on the diffuser so that it snaps on to the connectors.
Place the cover back over the diffuser, then reinsert the screws into the cover.
Place the food back into the refrigerator, and close the door. Plug the power cord back into the wall outlet.