The Stirrer Fan Cover is an OEM part for Samsung microwaves. It is designed to protect the stirrer fan, which helps distribute energy evenly throughout the cooking cavity, ensuring consistent and thorough cooking results. A bad stirrer fan cover can be caused by wear and tear, damage, or improper cleaning. When the fan cover malfunctions, it can result in a range of problems, such as uneven cooking, hotspots, or the microwave not heating food properly. Symptoms of a bad stirrer fan cover include: Uneven cooking or hotspots in the food Microwave not heating food properly Unusual noises during operation Error codes displayed on the control panel Replace your faulty microwave stirrer fan cover with this genuine OEM part to restore your microwave. This Samsung part can also be used on Kenmore/Sears appliances.DE63-00534A (AP4451191) replaces 2080646, PS4228197.