WPW10194431 - Whirlpool Refrigerator Start Relay

This Whirlpool Refrigerator Start Relay (WPW10194431) is an essential component for Whirlpool refrigerators, acting as a genuine part to ensure the efficient operation of the compressor. It's compatible exclusively with Whirlpool brand appliances and is crucial in starting the compressor's motor by providing the necessary surge of high starting current to overcome mechanical resistance. Commonly referred to as a "start-dev" or compressor overload and start relay, this part plays a pivotal role in the refrigerator's cooling process. Once your refrigerator's thermostat signals the need for cooling, the start relay promptly engages, facilitating a connection between the compressor motor windings and the power supply. This action allows for a significant inrush of current to the compressor, thus providing the torque required to overcome inertia and initiate the motor's rotation. The relay employs an internal electromagnet that closes the contacts when energized, ensuring current flow to the compressor. As soon as the compressor motor reaches the necessary speed and requires less current, the start relay disengages, effectively maintaining the compressor's operation on its main windings alone. Symptoms indicating a potential failure of this part may include the refrigerator failing to cool properly or the compressor not starting at all. If you're experiencing these issues, replacing the start relay might be necessary. Make sure to verify your refrigerator's model number to confirm compatibility before making a purchase.