How To Clean the Door Seals
The door seals form an airtight seal between the door and the refrigerator case. Mildew can form on the door seals, which can cause an unpleasant odor and can also cause the seals to become brittle and crack.
Periodically clean the door seals with a toothbrush and a solution of warm water and baking soda or water and bleach. Gently pull the seal to expose the folds. Be careful not to pull too hard or you might tear the seal.
If they are torn or warped, they cannot form a tight seal, the cold air will leak out, which will cause the compressor to run more and prematurely burn out. Worn and damaged door seals should be replaced.