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Programmed Performance: Pre-flashed with York’s proprietary airflow parameters for exact CFM delivery across various ductwork configurations
If the area is clear of vapors but the 7-flash code persists
Buna-N is the standard for most air and water applications
primarily handling water
Williams P500409 Wire 321894-709 Programmed Performance: Pre-flashed with York’sProfessional grade furnace maintenance requires exact electrical specifications, and the Williams P500409 Wire Assembly delivers the necessary conductivity for high demand heating systems. This OEM wire harness is engineered specifically for the Williams Vented Hearth Heater series, ensuring a precise match for internal circuitry. Designed to facilitate consistent power distribution and signal integrity, the P500409 is a critical component for