Why do refrigerator get hot?

If the side of the refrigerator is burning hot, its motor may be overheating. First check that the cooling fan is working properly and that the refrigerator is properly ventilated. Sometimes if a refrigerator is jammed against a wall, it can overheat. Then, check around the refrigerator for the smell of something burning and for unusual sounds (as if a part has come loose). Call a repair service immediately. If everything is ok, perhaps your refrigerator is overloaded. Consider reducing the coldness of both the refrigerator and freezer sections, and do not place hot items inside. However, bear in mind that a well-stored refrigerator takes less energy to keep cool than an empty one, because the contents act as insulators and reduce the air space inside.