OEM Carrier Pressure Switch with Bracket (HK06WC090) for Model GB1AAV024035AAJA

This is the factory OEM replacement pressure switch with mounting bracket for the Carrier GB1AAV024035AAJA gas furnace. The pressure switch is a critical safety device that monitors negative air pressure generated by the inducer motor, confirming proper draft before allowing the control board to proceed with ignition. When this switch fails, the furnace will typically lock out before the ignition sequence begins — you may notice the inducer motor running continuously while the burners never light, or a fault code indicating an open pressure switch on the control board.

• Specs: OEM Part Number HK06WC090 | Includes factory mounting bracket | Rated for the specific water column (W.C.) pressure of the GB1AAV024035AAJA inducer assembly | Single-port configuration factory-matched to this model
• OEM vs Generic: OEM pressure switches are calibrated to the exact W.C. threshold required by Carrier engineering. Aftermarket substitutes with loose tolerances can trip prematurely or fail to trip at all — creating either nuisance lockouts or, more dangerously, allowing ignition under inadequate draft conditions.
• Install difficulty: 2/5 — Shut off power and gas before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Disconnect the rubber hose and two wire leads, unmount the old bracket, and transfer the new assembly to the same location. Inspect the hose for cracks or blockages before reinstalling.
• Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed specifically for the Carrier GB1AAV024035AAJA gas furnace. Always verify the W.C. rating stamped on your existing switch matches before installing any replacement. If you are unsure of fitment, our HVAC parts specialists can confirm compatibility before you order — same-day shipping available on in-stock OEM parts.