OEM Carrier LP Gas Pressure Switch 6.5" W.C. for Model PG8MAA048070AEJA

This OEM Carrier gas pressure switch (part numbers HK02LB008 and HK06WC091) is the factory-specified replacement for the Carrier PG8MAA048070AEJA packaged gas/electric unit. The pressure switch monitors the differential pressure created by the inducer motor to confirm safe venting conditions before allowing the gas valve to open. When the switch fails — or when it sticks open or closed — the furnace section will lock out, leaving you with no heat despite the inducer running normally.

• Specs: LP / Propane gas pressure switch | 6.5" W.C. cut-out setpoint | SPST configuration | Compatible with air, natural gas, and LP gas applications | Mounts horizontally or vertically
• OEM vs Generic: This is a genuine Carrier OEM part manufactured to exact factory pressure tolerances. Aftermarket switches often deviate from the rated W.C. setpoint, causing nuisance lockouts or — more dangerously — failing to detect blocked flue conditions. Always use OEM on gas-burning appliances.
• Install difficulty: 2/5 — Turn off gas and power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers. Photograph or label the pressure tubing ports before disconnecting. Inspect the rubber hose for cracks while the switch is out — a cracked hose causes the same symptom as a failed switch.
• Warranty & Shipping: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse when ordered by 3 PM local time.

Compatibility: Designed for the Carrier PG8MAA048070AEJA packaged gas/electric unit. Also cross-references Bryant and Payne units sharing the HK02LB008 / HK06WC091 specification. Note: HK02LB008 has been superseded — this listing supplies the current authorized replacement. Verify your unit's data plate fuel type (LP/Propane) before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — call or chat now.