OEM Carrier Pressure Switch with Bracket (HK06WC090) for Model PG8UAA048091AAJA

This is the factory OEM replacement pressure switch with integrated mounting bracket for the Carrier PG8UAA048091AAJA packaged gas unit. The pressure switch is a critical safety component that monitors the negative pressure (water column) produced by the inducer draft motor. When the inducer establishes proper airflow, the switch closes and signals the control board to proceed with ignition. A failed pressure switch will prevent the furnace from ever reaching the ignition stage, often resulting in a "pressure switch stuck open" fault code, continuous inducer operation with no heat, or a system that attempts to start and then locks out after multiple retries.

• Specs: OEM-specified water column (W.C.) rating | Includes factory mounting bracket | Direct plug-and-play wiring harness connector | Rated for single-stage inducer operation on Carrier packaged gas equipment
• OEM vs Generic: This OEM unit is calibrated to the exact W.C. trip point specified for the PG8UAA048091AAJA. Generic or universal pressure switches frequently carry wider trip-point tolerances, which can cause nuisance lockouts or — more dangerously — allow ignition under inadequate draft conditions.
• Install difficulty: 2/5 — Straightforward swap requiring a 1/4" nut driver, needle-nose pliers, and a digital manometer (recommended to verify W.C. after install). Always disconnect power and gas before servicing. Photograph existing hose and wiring routing before removal.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered and factory-matched for the Carrier PG8UAA048091AAJA packaged gas unit. Confirm your existing pressure switch part number on the unit data plate or control board wiring diagram before ordering. Our fitment team is available to verify compatibility before you buy — no guesswork required.