Carrier HK42FZ020 Control Board 323613-751 The 20 mm diameter of

The 20 mm diameter of the extension rod provides the necessary structural rigidity to prevent bowing or fatigue under high-torque applications

Common Questions What is the maximum pressure rating for the AFS-952-1-B

ideal for critical vent line applications

Technicians typically look for ignition lockout codes

Can this relay be used for heat pump applications

Carrier HK42FZ020 Control Board 323613-751 The 20 mm diameter ofThe Carrier HK42FZ020 Control Board is a critical OEM replacement part designed for two stage gas furnace systems. This furnace circuit board serves as the central logic unit, managing the complex sequence of operations for high efficiency heating cycles. Engineered for Carrier, Bryant, and Payne equipment, it replaces previous iterations like the HK42FZ019, providing reliable control over the inducer motor, hot surface igniter, and blower motor