OEM Carrier LP Gas Pressure Switch (HK02LB008 / HK06WC091) for Model PG8MAA024045AEJA

This OEM Carrier LP gas pressure switch is the factory-specified replacement for the Carrier PG8MAA024045AEJA packaged gas furnace. The pressure switch monitors negative pressure created by the inducer motor to confirm proper venting before allowing the gas valve to open. If the switch fails or the hose collapses, the furnace will enter a safety lockout — typically before the igniter ever glows — leaving you with no heat and a flashing fault code on the control board.

• Specs: LP (propane) gas pressure switch | 6.5" W.C. cutout pressure | SPST single-pole configuration | Factory-matched OEM tolerances | Replaces OEM part numbers HK02LB008 and HK06WC091
• OEM vs Generic: OEM pressure switches are calibrated to exact W.C. specifications at the factory. Generic aftermarket switches frequently drift outside tolerance, causing nuisance lockouts or — more dangerously — allowing the furnace to run with inadequate draft, creating a carbon monoxide risk.
• Install difficulty: 2/5 — Power down and lock out the furnace before beginning. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Photograph the hose routing and wiring before removing the old switch. Check the rubber vacuum hose for cracks or blockages before installing the new switch — a failed hose causes the same symptoms as a failed switch.
• Warranty: 1-year OEM factory warranty. In-stock units ship the same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier PG8MAA024045AEJA packaged gas furnaces configured for LP (propane) fuel. Also fits a wide range of Carrier, Bryant, and Payne PG8MAA, PG8MEA, PG8JAA, PG8JEA, and PG8MVA series units — verify your fuel type (LP vs. natural gas) and model number before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — just reach out before placing your order.