OEM Carrier Pressure Switch with Bracket HK06NB124 for Model PG9MAB048060ABSA

This is the factory OEM replacement pressure switch with mounting bracket for the Carrier PG9MAB048060ABSA gas furnace. The pressure switch monitors negative pressure created by the inducer (draft) motor to confirm safe venting conditions before allowing the ignition sequence to proceed. When this switch fails or sticks, the furnace control board will lock out the ignition cycle — typically displaying an error code — and the unit will not produce heat until the fault is cleared and the switch is replaced.

• Specs: SPST (Single-Pole, Single-Throw) | Set Point: -1.65" WC | Rating: 1.81" WC Normally Open | Includes factory mounting bracket | Honeywell-manufactured OEM component
• OEM vs Generic: This is the genuine Carrier OEM part (HK06NB124), factory-matched to exact water column tolerances for the PG9MAB048060ABSA. Generic aftermarket switches often carry wider pressure tolerances, risking nuisance lockouts or — worse — failure to detect unsafe venting conditions.
• Install difficulty: 2/5 — Shut off gas and power before beginning. Disconnect the two hoses (note + and – port labels and any orifice/restrictor orientation before removing). Disconnect low-voltage spade terminals (different sizes — they only connect one way). Unmount old bracket, install new bracket, and reconnect. Tools needed: flathead screwdriver, needle-nose pliers, phone camera to document wiring.
• Warranty & Shipping: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff. Supersedes obsolete part numbers HK06NB119, HK06NB120, HK06NB122, and HK06NB123.

Compatibility: Direct OEM fit for Carrier model PG9MAB048060ABSA gas furnace. This part is also the current active replacement for over 200 Carrier and Bryant residential furnaces — always verify your unit's data plate and original part number before ordering. Have a fitment question? Our HVAC parts specialists verify compatibility before you buy.