OEM Carrier Pressure Switch with Bracket HK06NB124 for Model PG9MAB060100ABSA

This is the factory OEM replacement pressure switch with integrated mounting bracket for the Carrier PG9MAB060100ABSA gas furnace. The pressure switch is a critical safety component that monitors the negative pressure generated by the draft inducer motor to confirm proper venting before allowing the ignition sequence to proceed. When the switch fails or its set-point drifts out of spec, the furnace control board registers an inducer proving fault and locks out the heating cycle — leaving you with a blinking fault code and no heat.

• Specs: OEM-rated water column (W.C.) set-point factory-matched to PG9MAB060100ABSA | Includes factory mounting bracket for direct bolt-in installation | Normally-open contact closes on inducer pressure confirmation | Replaces part number HK06NB124
• OEM vs Generic: This is a genuine Carrier OEM part, calibrated to the exact W.C. rating required by your furnace. Aftermarket pressure switches are often rated at approximate W.C. values, which can cause nuisance lockouts in cold weather or — worse — allow operation under marginal venting conditions, creating a safety risk.
• Install difficulty: 2/5 — Turn off power and gas before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, and a manometer to verify W.C. after replacement. Disconnect the rubber hose and two wiring terminals, unbolt the bracket, and reverse to install. Always inspect the hose for cracks or blockages before condemning the switch.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Engineered and factory-specified for the Carrier PG9MAB060100ABSA gas furnace. Verify your existing part number on the switch body or your unit's wiring diagram before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you buy if you have any doubts.