OEM Carrier LP Gas Pressure Switch HK02LB008 / HK06WC091 for Model PG8JAA024045AEJA

This OEM Carrier gas pressure switch is the factory-specified replacement for the Carrier PG8JAA024045AEJA packaged gas unit. The pressure switch proves that the inducer motor has established adequate draft before the furnace control board allows the ignition sequence to proceed. When this switch fails — whether due to a ruptured diaphragm, clogged port, or worn contact — the furnace will lock out before the igniter ever fires, leaving you with a no-heat call and a fault code pointing to a pressure switch open condition.

• Specs: LP / Propane gas pressure switch | Cut-out set point: 6.5" W.C. | SPST normally-open configuration | OEM part numbers: HK02LB008 (Gas Pressure Switch) and HK06WC091 (Pressure Switch) | Compatible with air, natural gas, and LP gas applications | Mountable in horizontal or vertical orientation
• OEM vs Generic: OEM pressure switches are factory-calibrated to the exact W.C. set point for your unit. Generic aftermarket switches frequently carry wider tolerances, risking nuisance lockouts or — more dangerously — failure to prove draft at the correct threshold, compromising flue safety.
• Install difficulty: 2/5 — Shut off gas supply and 120V power before beginning. Tools needed: 1/4" nut driver, needle-nose pliers, small flathead screwdriver, and a manometer if verifying set point post-install. Always inspect the rubber hose port and drain trap for blockages before condemning the switch — a blocked port causes the same symptom as a failed switch.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM fit for Carrier model PG8JAA024045AEJA packaged gas/electric units. Cross-references OEM part numbers HK02LB008 and HK06WC091. Note that HK02LB008 has been superseded by HK02MB008 and HK06WC091 has been superseded by HK06MC110 — this listing ships the current OEM replacement. Verify your unit's data plate and existing switch W.C. rating before ordering. Our team is available to confirm fitment prior to purchase — order with confidence and get your system back online today.