Step 1
Wait until you see ice or frost building up on the inside walls of your freezer. This is a sign that ice is also building up on the freezer's evaporator coils, which means you need to manually defrost the refrigerator.
Step 2
Remove all of the food from the fridge and freezer. Store it in a friend's fridge to keep it cool.
Step 3
Unplug the refrigerator and open both doors. Let it defrost for two days. During that time, the ice and frost will melt. If there is a lot of ice, place towels around the fridge to catch the runoff.
Step 4
Plug the refrigerator back in and wait for it to cool. Put the food back into the refrigerator and freezer.