OEM Carrier Pressure Switch with Bracket HK06NB124 for Model PG9MAB060140LBSA

This OEM pressure switch with bracket is the factory-specified replacement for the Carrier PG9MAB060140LBSA 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 becomes stuck open, the furnace control board will lock out the system — typically resulting in a no-heat call, a flashing fault code indicating a pressure switch error, or a furnace that starts the inducer motor but never advances to ignition.

• Specs: OEM Carrier pressure switch with integrated mounting bracket | Factory-calibrated water column (W.C.) set point | Direct drop-in replacement for part number HK06NB124 | Bracket included for secure inducer housing mounting
• OEM vs Generic: This is a genuine OEM Carrier component manufactured to exact W.C. pressure tolerances. Aftermarket pressure switches often ship with wider tolerance bands, increasing the risk of nuisance lockouts or — more critically — unsafe ignition under marginal venting conditions.
• Install difficulty: 3/5 — Turn off power and gas supply before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, and a manometer (recommended to verify W.C. reading post-install). Photograph all hose connections before disconnecting. Replace hoses if cracked or brittle during inspection.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier model PG9MAB060140LBSA gas furnaces. Always verify the W.C. rating on your existing switch and cross-reference part number HK06NB124 on your unit's wiring diagram or data label before ordering. Our fitment team is available to confirm compatibility before you buy.