OEM Carrier Pressure Switch w/ Bracket (HK06WC090) for Model PG8UAA060135ADJA

This is the genuine OEM factory-specified pressure switch with mounting bracket for the Carrier PG8UAA060135ADJA packaged gas furnace. The pressure switch monitors negative pressure created by the inducer motor to confirm proper venting before allowing the ignition sequence to proceed. When it fails or sticks open, the furnace control board detects an unsafe condition and locks out the heating cycle entirely — leaving you with a non-heating unit, a flashing fault code, or a system that attempts to start and immediately shuts down without ever reaching ignition.

• Specs: Rated at -0.33" W.C. (inches water column) | Single-port design with mounting bracket included | Factory-calibrated for Carrier PG8UAA series packaged gas units | Normally-open contacts that close on inducer pressure proof
• OEM vs Generic: OEM pressure switches are precision-calibrated to the exact W.C. rating required by your furnace's inducer assembly. An off-tolerance generic switch can cause nuisance lockouts or — more dangerously — allow ignition under improper venting conditions. Always match the W.C. rating exactly.
• Install difficulty: 2/5 — Disconnect power and gas before beginning. Tools needed: 1/4" nut driver, needle-nose pliers, and a short length of replacement hose if the existing tubing is cracked. Before replacing the switch, inspect the rubber hose port and condensate drain line for blockages, which frequently mimic switch failure.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier PG8UAA060135ADJA packaged gas furnace. This part also supersedes earlier Carrier pressure switch part numbers including HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, and HK06WC074. Verify the W.C. rating stamped on your existing switch before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.