The Frigidaire 218909912 run capacitor supports efficient compressor operation by helping start and maintain consistent motor performance in your refrigerator. This electrical component stores and releases energy to provide the necessary boost for the compressor to start and run smoothly. It works by regulating voltage and delivering a steady current, ensuring the compressor operates at the correct speed. Designed for reliable performance, it is built to handle continuous use in demanding conditions. By restoring proper electrical function, it improves cooling efficiency, reduces strain on the compressor, and helps maintain stable temperatures inside the refrigerator.