OEM Carrier Pressure Switch HK06WC061 for Model LC350TM400558

This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier LC350TM400558 furnace. The pressure switch is a critical safety component that monitors negative pressure created by the inducer draft motor. It confirms that proper airflow and venting are established before allowing the control board to proceed with ignition. When this switch fails or sticks open, the furnace will lock out before the ignition sequence begins — leaving you with no heat and often a flashing fault code indicating a pressure switch error.

• Specs: OEM-matched water column (W.C.) rating | Single-port or dual-port configuration as factory-specified | 24V control circuit compatible | Direct drop-in replacement for part number HK06WC061
• OEM vs Generic: This is a genuine OEM Carrier pressure switch calibrated to the exact W.C. rating required for the LC350TM400558. Aftermarket switches frequently carry wide pressure tolerances that can cause nuisance lockouts or — more dangerously — allow ignition under unsafe draft conditions.
• Install difficulty: 2/5 — Disconnect power before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, and a manometer if verifying W.C. reading. Always inspect the rubber hose and hose ports for cracks or blockages before replacing the switch, as a clogged port is a common root cause of switch failure.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier LC350TM400558 furnace. Verify the existing part number printed on your pressure switch matches HK06WC061 before ordering. If you are unsure, our parts specialists are available to confirm fitment using your model and serial number — just reach out before you order and we'll make sure you get the right part the first time.