OEM Carrier Pressure Switch w/ Bracket — HK06WC090 for Model PG8UAA060155ACJA

This is the factory OEM replacement pressure switch with mounting bracket (part number HK06WC090) for the Carrier PG8UAA060155ACJA packaged gas furnace. The pressure switch is a critical safety component that monitors negative air pressure created by the draft inducer motor. When the inducer comes up to speed and generates the correct pressure, the switch closes and allows the control board to proceed to ignition. A failed or out-of-spec pressure switch will prevent the furnace from advancing past the inducer stage — resulting in a no-heat lockout, often accompanied by a diagnostic fault code for "pressure switch stuck open" or "inducer fault."

• Specs: Rated at -0.33 W.C. (inches of water column) | SPST normally-open configuration | Includes factory mounting bracket | Replaces legacy part numbers HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001, 310315-751, 310315-752, and 326750-751
• OEM vs Generic: This is a genuine Carrier OEM switch, factory-calibrated to the exact -0.33 W.C. trip point. Off-brand substitutes often carry ±15% tolerance on the set point, leading to nuisance lockouts in cold weather or — worse — failure to detect a degraded inducer, creating a safety hazard.
• Install difficulty: 2/5 — Before starting, verify the inducer motor and hose connections are functioning correctly, as a failed inducer or cracked hose is a common root cause that resembles a bad switch. Tools needed: flat-blade and Phillips screwdrivers, a U-tube manometer or digital magnehelic gauge (recommended to verify inducer pressure), and needle-nose pliers for hose clamps. Always confirm 24V is removed from the control circuit before disconnecting wiring.
• Warranty & Shipping: 1-year OEM factory warranty against defects. Ships same business day from our warehouse — order by 3 PM local time for same-day dispatch.

Compatibility: Engineered specifically for the Carrier PG8UAA060155ACJA packaged gas furnace. Also fits multiple PG8UAA and PG8DAA series Carrier models that share the -0.33 W.C. pressure switch specification — verify your unit's data plate and existing switch rating before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.