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The Carrier Circuit Board is an essential component for maintaining optimal performance in heating and cooling systems. Made in the USA, this reliable and durable part helps detect phase shift and diagnose wiring issues to ensure your system runs smoothly. With a condensed manufacturer number of HK42FZ017 and an MPN of HK42FZ017, this Circuit Board is designed specifically for use with the Carrier model 312AAV024070AAJA. It fits seamlessly into a wide range of applications and provides exceptional benefits including improved efficiency, cost-effectiveness, and extended product life. Whether you are a professional HVAC technician or a homeowner looking to repair your system, the Carrier Circuit Board is a must-have for optimal performance and reliability.