OEM Carrier Gas Pressure Switch HK02LB008 / HK06WC091 for Model PG8JEA048090ABJA

This is the genuine OEM Carrier gas pressure switch for the Carrier PG8JEA048090ABJA packaged gas unit. Sold under part numbers HK02LB008 (Gas Pressure Switch) and HK06WC091 (Pressure Switch), this component monitors the gas supply pressure and signals the integrated furnace control board to allow or interrupt ignition. When it fails — or when gas pressure falls outside the factory threshold — the board issues a lockout, leaving you with no heat and a flashing fault code. If your unit attempts ignition and shuts down immediately without firing, or never advances past the inducer pre-purge stage, a faulty pressure switch is one of the first components to test.

• Specs: LP (propane) gas pressure switch | Cut-out pressure: 6.5 in W.C. | Factory-calibrated for Carrier PG8JEA048090ABJA packaged units | Replaces both HK02LB008 and HK06WC091
• OEM vs Generic: This is the factory-matched OEM part, engineered to Carrier's exact pressure set point. Aftermarket substitutes often ship with uncalibrated diaphragms that drift over time, causing nuisance lockouts or — worse — unsafe operation.
• Install Difficulty: 2/5 — Shut off gas and disconnect power before beginning. Tools needed: ¼" nut driver, flathead screwdriver, manometer (recommended for post-install verification), and a leak-detection solution. Photograph hose routing and wiring before disconnecting. Swap the vacuum hose and two-wire harness, then verify operation through a full heat call.
• Warranty & Shipping: 1-year OEM factory warranty against defects. In-stock units ship same business day from our warehouse. Note: HK02LB008 is superseded — confirm your replacement part number with our team if your unit requires the updated HK02MB008 revision.

Compatibility: Designed for the Carrier PG8JEA048090ABJA packaged gas/electric unit. Also fits select Bryant and Payne packaged units sharing the same pressure switch specification — verify your data plate and OEM part number before ordering. Our fitment team is available to confirm compatibility before you check out. Order now and receive same-day shipping on qualifying in-stock orders.