A malfunctioning compressor can result in your refrigerator not cooling effectively, leading to spoilage of food. The MKV190CL2J/SM1 compressor is a genuine Samsung replacement part, essential for maintaining the optimal performance of your refrigerator. Symptoms of a failing compressor can include unusual noises, warm temperatures, or the refrigerator not running. It is important to verify the model number of your device for compatibility before purchasing.