OEM Carrier Dual Pressure Switch Assembly HK06NB012 for Model PG96VAT30040ABAA

This OEM Dual Pressure Switch Assembly is the factory-specified replacement for the Carrier PG96VAT30040ABAA 96% high-efficiency gas furnace. The pressure switch is a critical safety component that monitors the vacuum level produced by the inducer motor. If the inducer fails to achieve the correct draft pressure, the switch prevents the furnace from proceeding to ignition — protecting against unsafe flue gas conditions. When this switch fails, the furnace will typically lock out before ignition, display a pressure switch fault code, or short-cycle immediately after startup.

• Specs: Dual pressure switch assembly | SPST configuration | Two switches included, each with 2 wire terminals and 1 hose port | Factory-matched W.C. setpoint | OEM Part # HK06NB012 (superseded by HK06MB012)
• OEM vs Generic: OEM Carrier pressure switches are calibrated to exact water-column (W.C.) pull-in specs. Aftermarket switches frequently carry wider tolerances, risking nuisance lockouts or, worse, allowing unsafe draft conditions to pass undetected.
• Install Difficulty: 3/5 — Shut off gas and power before servicing. Tools needed: 1/4" nut driver, flat-head screwdriver, manometer (recommended for W.C. verification), and zip ties for hose routing. Photograph all hose and wiring connections before removal. Verify new switch W.C. rating matches the rating printed on the furnace rating plate.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG96VAT30040ABAA 96% AFUE, single-stage, upflow/horizontal gas furnace. OEM part number HK06NB012 has been superseded by HK06MB012 — both are covered by this listing. Verify your unit's model and serial number against your data plate before ordering. Our fitment specialists are available to confirm compatibility before you buy.