The Compressor Start Device is an OEM replacement part for Frigidaire refrigerators. It plays an important role in safely starting the refrigerator's compressor during power-on. The start device provides a controlled surge of power to gently energize the compressor and bring it up to operating speed. This allows the compressor to start smoothly without damaging electrical components or straining internal mechanical parts. Symptoms of a bad compressor start device can include: The refrigerator compressor not engaging or turning on at all Loud buzzing or clicking noises coming from the compressor area The refrigerator failing to reach and maintain proper temperature levels This Frigidaire OEM replacement part is also compatible with Electrolux, Gibson, Kelvinator, and some Kenmore models.216954235 (AP6974028) replaces 216954205, 241527802, 241527804, 241941001, 297237700, 7216954205.