OEM Carrier LP Gas Pressure Switch HK02LB008 / HK06WC091 for Model PG8MAA036070AEJA

This is the factory OEM replacement LP gas pressure switch for the Carrier PG8MAA036070AEJA packaged gas unit. The pressure switch proves that the inducer blower has created sufficient draft before allowing ignition to proceed. When this switch fails or sticks, the furnace will go into lockout before the ignition sequence completes — typically resulting in a no-heat call with a pressure switch fault code on the control board. OEM part numbers for this application are HK02LB008 (Gas Pressure Switch) and cross-reference HK06WC091 (Pressure Switch).

• Specs: LP (Propane) gas pressure switch | Cut-out set point: 6.5 in. w.c. | SPST normally open | Fits Carrier, Bryant, and Payne packaged units and furnaces
• OEM vs Generic: This is a genuine OEM Carrier part manufactured to exact factory tolerances. Generic aftermarket switches often carry wider cut-out pressure tolerances, risking nuisance lockouts or, worse, unsafe combustion conditions. Always use OEM on gas-proving switches.
• Install difficulty: 2/5 — Shut off gas and power before beginning. Tools needed: 1/4" nut driver, flat-head screwdriver, manometer (to verify cut-out after install). Disconnect the two wires and one rubber hose from the old switch, then reverse to install. Always confirm draft pressure within spec after replacement.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8MAA036070AEJA packaged gas unit. Also fits select Bryant and Payne models sharing this pressure switch specification. Cross-reference OEM part numbers HK02LB008 and HK06WC091 to confirm fitment with your unit's data plate. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you order — no guesswork.