The Carrier HK42PG004 (around 0.4 lbs) is a vital electronic component known as a motor control board designed for Carrier HVAC equipment, most likely furnaces or air handlers (verification needed for compatibility with other brands). This small but significant board plays a critical role in regulating the operation of the blower motor, ensuring efficient and reliable air circulation ... https://www.partshnc.com/hk42pg004-carrier-motor-control-board