OEM Carrier Pressure Switch w/ Bracket (HK06NB124) for Model PG9MAB024060AASA

This OEM pressure switch with mounting bracket is the factory-specified replacement for the Carrier PG9MAB024060AASA gas furnace. The pressure switch monitors negative pressure created by the draft inducer motor to confirm that the flue is safely venting combustion gases before allowing ignition. When it fails or sticks open, the furnace control board receives no proof-of-inducer signal and locks out the heating cycle — typically throwing a fault code before a single ignition attempt is ever made.

• Specs: 1.81" WC set point | -1.65" WC SPST (single-pole, single-throw) | Includes factory mounting bracket | OEM part number HK06NB124
• OEM vs Generic: This is a genuine Carrier OEM pressure switch, precision-calibrated to the exact water-column rating for your furnace. Generic aftermarket switches often carry looser tolerances that cause nuisance lockouts or, worse, unsafe operation under marginal inducer conditions.
• Install difficulty: 2/5 — Standard hand tools required: flat-head screwdriver, needle-nose pliers. Disconnect power and gas before beginning. Photograph all hose and wiring connections before removal. The bracket simplifies reinstallation to the factory mounting point.
• Supersedes: HK06NB124 replaces obsolete part numbers HK06NB120, HK06NB119, and HK06NB122 — no modification needed. Warranty: 1-year OEM factory warranty. Ships same business day.

Compatibility: Direct OEM replacement for Carrier model PG9MAB024060AASA gas furnace. This switch is also used as the replacement pressure switch across more than 200 Carrier and Bryant residential furnaces — always verify your unit's existing WC rating on the data plate or old switch body before ordering. In stock and ready to ship today — get your heat back fast.