including the 330AAV

Anti-Stick Properties: Simplifies future maintenance by preventing the gasket from bonding to the valve face or housing

preventing air binding and optimizing heat transfer efficiency

Common Questions What is the primary function of the yellow Maxitrol spring

Carrier LH33WP008 Control Board 340155-7024 including the 330AAVThe Carrier LH33WP008 Control Board is a critical microprocessor based ignition command center designed for high efficiency gas fired furnaces and package units. This OEM furnace control board (MPN: LH33WP008) serves as the primary interface for managing hot surface ignition (HSI) timing and monitoring the flame sensor for safe, reliable combustion cycles. Engineered to ensure precise current delivery to the ignitor, this board eliminates many common