OEM Carrier Pressure Switch w/ Bracket (HK06WC090) for Model PG8UAA024065ADJA

This is the factory OEM pressure switch with mounting bracket for the Carrier PG8UAA024065ADJA gas furnace. The pressure switch is a safety device that monitors negative pressure created by the inducer blower motor to confirm proper venting before allowing the ignition sequence to proceed. When it fails — or when the hose, port, or diaphragm degrades — the furnace will lock out before reaching ignition, typically displaying a fault code for "pressure switch stuck open" or "inducer proving failure." Replacing the pressure switch with the correct OEM-rated part restores safe, reliable furnace operation.

• Specs: –0.33" W.C. (water column) set point | SPST configuration | Includes factory mounting bracket | Replaces HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001
• OEM vs Generic: OEM pressure switches are factory-calibrated to the exact W.C. set point for your furnace model. Off-spec generics can allow ignition under unsafe venting conditions or nuisance-trip during normal operation — always use OEM on pressure switches.
• Install difficulty: 2/5 — Turn off power and gas before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Inspect the rubber hose and inducer port for cracks or blockages before installing the new switch. Photograph all hose connections prior to removal.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day when placed before 5 PM local time.

Compatibility: Direct OEM replacement for Carrier model PG8UAA024065ADJA. Also supersedes multiple legacy Carrier, Bryant, and Payne pressure switch part numbers. Verify the –0.33" W.C. rating on your existing switch's label or your unit's wiring diagram before ordering. Our fitment team is available to confirm compatibility prior to purchase.