Williams P625473 Control Board 318973-401 and a high-flow capacity suited

and a high-flow capacity suited for units requiring up to 150

55" WC to match OEM airflow requirements for specific furnace models

distribution work

or ignition failure codes on the control board caused by the pressure switch not closing

Williams P625473 Control Board 318973-401 and a high-flow capacity suitedExperienced HVAC contractors recognize the Williams P625473 Control Board as the essential genuine OEM replacement part for maintaining the operational integrity of Williams Comfort Products heating systems. As a primary furnace control board, this component functions as the central logic unit, regulating critical sequences such as ignition, blower timing, and safety circuit monitoring. Engineered for a drop in fit, it eliminates the calibration