OEM Carrier Gas Pressure Switch HK02LB008 for Model PG8JAA060155AGJA

This is the genuine OEM Carrier gas pressure switch (part number HK02LB008), factory-specified for the Carrier PG8JAA060155AGJA packaged gas unit. The pressure switch monitors the negative pressure created by the inducer motor and proves proper draft before allowing the control board to proceed with ignition. When this switch fails or sticks open, the furnace will lock out on a pressure fault — typically before the igniter ever fires — leaving you with no heat. A failed switch may also cause short-cycling or a continuous inducer run with no ignition attempt.

• Specs: LP / Gas Pressure Switch | Cut-out set point: 6.5" W.C. | SPST configuration | Compatible with air, natural gas, and LP gas applications | Mounts horizontally or vertically
• OEM vs Generic: This is a factory-matched OEM part. Generic pressure switches frequently carry wider W.C. tolerances that can cause nuisance trips or fail to prove draft reliably — both leading to repeat service calls. The OEM part ensures the precise set-point your control board expects.
• Install difficulty: 2/5 — Shut off power and gas before servicing. Disconnect the pressure tubing and two-wire harness, swap the switch, and reconnect. Tools needed: 1/4" nut driver, flat-head screwdriver. Always inspect the pressure tubing for cracks or blockages while the switch is off — a plugged port is a common root cause of switch failure.
• Warranty & Shipping: 1-year OEM factory warranty. Orders placed before 3 PM local time ship same business day from our warehouse.

Related OEM Part Numbers: This listing covers the Carrier pressure switch family for the PG8JAA060155AGJA, including HK02LB008 (Gas Pressure Switch), HK06WC091 (Pressure Switch), and HK06WC100 (Pressure Switch with Bracket). Verify which switch position and bracket configuration your unit requires before ordering — photos of your existing switch and tubing routing help confirm the correct part. Not sure which one fits? Our team verifies fitment before you order — call or chat now.