OEM Carrier Pressure Switch w/ Bracket — .33" W.C. for Model PG8UAA024065ABJA

This factory-original OEM pressure switch (part# HK06WC090) is the direct, exact-fit replacement for the Carrier PG8UAA024065ABJA gas furnace. The pressure switch is a critical safety device that monitors the negative pressure (draft) produced by the inducer motor. Once the inducer reaches proper airflow, the switch closes and allows the ignition sequence to proceed. When this switch fails or sticks open, the furnace will enter a hard lockout — typically displaying a fault code — and refuse to light, leaving you without heat.

• Specs: Rating — .33" W.C. (inches water column) | Switch type: SPST normally open | Includes factory-matched mounting bracket | OEM part number: HK06WC090
• OEM vs Generic: This is a genuine Carrier OEM component manufactured to exact factory pressure tolerances. Aftermarket switches frequently ship with loose W.C. tolerances, causing nuisance lockouts or — worse — bypassing a real venting problem, creating a dangerous carbon monoxide risk.
• Install difficulty: 2/5 — Power down and lock out the furnace before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, and a short length of replacement tubing if the hose is brittle. Photograph hose routing and wire connections before disassembly. Also inspect the inducer port and condensate trap for blockage before condemning the switch.
• Warranty: Backed by a 1-year OEM manufacturer warranty from date of purchase. In-stock orders ship the same business day from our warehouse.

Compatibility: Engineered as the OEM replacement for the Carrier PG8UAA024065ABJA packaged gas furnace. Also replaces legacy part numbers including HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001, 326750-751, 310315-751, and 310315-752. Always verify your existing switch's W.C. rating from the data label before ordering. Have a question about fitment? Our team confirms compatibility before you buy — contact us today.