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This is the genuine OEM pressure switch assembly with mounting bracket (part number HK06WC069), factory-specified for the Carrier PG8JAA036045ACJA gas furnace. The pressure switch is a critical safety device that monitors negative pressure created by the draft inducer motor. Once it confirms adequate airflow, it closes its circuit and allows the ignition sequence to proceed. When this switch fails — or if the inducer motor is weak — the control board interprets the open switch as a venting fault and locks out the furnace, leaving you with no heat.
Compatibility: Verified fit for Carrier model PG8JAA036045ACJA. Also cross-references to select Bryant and Payne furnace models sharing this inducer/pressure configuration. Always confirm your unit's W.C. rating on the existing switch before ordering. Our team is available to verify fitment — just reach out before you buy. Order today and your part ships today.