|If you have Frost or Ice in your Refrigerator Check the Following
First make sure the door was not left open for any extended period of time. If not check the door seal. If the door allows warm air to enter the freezer area moisture will form. To do this take a piece of paper and place it in the door and close it. It should have a tight fit all the way around. Sometimes sealing issues can be improved by rubbing a light coat of vaseline on the seal. If there are any rips, tears, or deformities the seal will need to be replaced.
A clogged drain will give the melted water from the evaporator no place to go. To fix this you will need to remove the back panel and locate the drain hole. Chip away any ice carefully. Use a turkey baster with hot water and force it down the drain until clear. Then mix some baking soda and water together and squirt some of that down the drain this will keep it clear for years to come.
You might have a cooling problem.