Carrier LH33WP007 Control Board 321702-401 this 1/2-inch ID synthetic rubber

this 1/2-inch ID synthetic rubber drain hose facilitates the reliable transport of fluids from the collector box to the secondary drain trap

Use a multimeter to measure the DC resistance across the sensor leads

The Viton (FKM) seals are ideal for oils

The dual-powered design supports either a hardwired "C" wire or battery operation via two AA batteries

and blower relays with specialized 24VAC logic circuits

Carrier LH33WP007 Control Board 321702-401 this 1/2-inch ID synthetic rubberThe Carrier LH33WP007 Ignition Control Board is a factory authorized OEM replacement engineered for high performance 24VAC furnace and packaged unit applications. As a critical HVAC furnace control board, this module manages the entire ignition sequence, including spark ignition, flame sensing, and gas valve regulation. Built for 60Hz systems, the Carrier LH33WP007 ensures precise timing and burner operation, providing a direct drop in solution that