If your Samsung refrigerator is not maintaining the right temperature, causing issues like food spoilage or excessive frost buildup, it may be time to replace the heater metal sheath. The DA47-00318P heater metal sheath is a genuine part for Samsung refrigerators, specifically designed for models with a French door design. The part operates on AC 120V and has a power output of 121W, ensuring your appliance operates efficiently. Before purchasing, verify your refrigerator's model number to confirm compatibility.