OEM Carrier Pressure Switch with Bracket HK06WC090 for Model PG8DAA024070ADJA

This is the genuine OEM pressure switch with mounting bracket for the Carrier PG8DAA024070ADJA packaged gas furnace. The pressure switch is a normally-open safety device that monitors negative pressure created by the inducer draft motor. Once the inducer establishes the correct draft, the switch closes and allows the control board to advance to the ignition sequence. A failed pressure switch is one of the most common causes of a furnace that powers on but locks out before ignition — typically producing a fault code indicating a failed or stuck pressure switch.

• Specs: -0.33 W.C. (inches water column) set point | Includes factory mounting bracket | Single-port hose connection | 24V control circuit compatible | OEM part number HK06WC090
• OEM vs Generic: This is a genuine Carrier-manufactured pressure switch calibrated to the exact -0.33 W.C. factory specification. Aftermarket switches frequently drift out of tolerance, causing nuisance lockouts or, worse, failing to trip on a genuine inducer fault — a safety risk.
• Install Difficulty: 2/5 — Power down and disconnect the furnace before beginning. Tools needed: Phillips screwdriver, needle-nose pliers, manometer (recommended for verification). Disconnect the rubber hose and two wiring harness leads, unmount the old bracket, and reverse the process for the new assembly. Always verify inducer pressure after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Fits Carrier model PG8DAA024070ADJA packaged gas furnace. This part also replaces legacy Carrier pressure switch part numbers including HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001, 326750-751, 310315-751, and 310315-752. Always verify the W.C. rating on your existing switch before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — order with confidence and get it shipped today.