OEM Carrier Pressure Switch HK06WC061 for Model LC350TM400572

This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier LC350TM400572 furnace. The pressure switch is a critical safety device that monitors negative air pressure produced by the inducer draft motor. It confirms proper venting airflow before allowing the control board to proceed with ignition. When this switch fails, your furnace will lock out before ignition — often displaying a fault code — leaving you without heat. Common symptoms include a system that starts the inducer motor but never advances to the heating cycle, or a furnace that flashes a pressure switch fault code on the control board.

• Specs: OEM part number HK06WC061 | Factory-matched W.C. (water column) rating | Single-port or dual-port design per factory specification | 24V control circuit compatible
• OEM vs Generic: This OEM Carrier pressure switch is calibrated to the exact water column rating required by the LC350TM400572. Generic switches often carry wider tolerances that can cause nuisance lockouts or, worse, fail to detect true venting problems — a potential safety hazard.
• Install Difficulty: 2/5 — Turn off power and gas before servicing. Tools needed: flat-head screwdriver, needle-nose pliers, and a multimeter to verify switch continuity. Disconnect the rubber hose and two wiring terminals, then swap and reconnect. Always inspect the hose for cracks or blockages before blaming the switch.
• Warranty: 1-year OEM factory warranty against defects. In-stock units ship same business day from our warehouse.

Compatibility: Designed specifically for the Carrier LC350TM400572 furnace. Verify your existing switch's W.C. rating and port configuration against your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. Order now and your part ships today.