OEM Carrier LP Gas Pressure Switch 6.5 in WC for Model PG8MAA024045AGJA

This is the OEM-specified LP gas pressure switch for the Carrier PG8MAA024045AGJA packaged gas/electric unit. The pressure switch proves inducer draft motor operation before allowing ignition — it is a critical safety device in the ignition sequence. When it fails or sticks open, the furnace will attempt to light, fail to prove draft pressure, and lock out, leaving the unit with no heat. Symptoms include a blinking fault code for "pressure switch open," a furnace that clicks but won't ignite, or a unit stuck before the trial-for-ignition stage.

• OEM Part Numbers: HK02LB008 (Gas Pressure Switch) | HK06WC091 (Pressure Switch) | HK06WC100 (Pressure Switch w/ Bracket) — all three are factory-authorized replacements for this model
• Specs: LP (propane) gas pressure switch | 6.5 in WC cut-out pressure | SPST normally-open configuration | Factory-set — no field adjustment required
• OEM vs Generic: OEM pressure switches are factory-calibrated to exact cut-out tolerances. Off-spec generic switches can cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions — always use OEM on safety-critical components like this one.
• Install Difficulty: 2/5 — Power down the unit and disconnect the inducer hose and two-wire harness. Tools needed: flat-head screwdriver, needle-nose pliers, phone camera (photograph hose and wire routing before removal). Note: HK06WC100 variant includes mounting bracket if your assembly requires it.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Fits Carrier model PG8MAA024045AGJA packaged gas/electric unit. This switch also cross-references to Bryant and Payne packaged units sharing the same inducer assembly. Verify your existing switch's WC rating and hose barb diameter on the unit data plate before ordering. Need fitment help? Our HVAC parts specialists verify compatibility before you buy.