OEM Carrier Pressure Switch HK06WC061 for Model LC348TM402771

This OEM pressure switch (part number HK06WC061) is the factory-specified replacement for the Carrier LC348TM402771 furnace. The pressure switch is a safety device that monitors negative pressure created by the inducer draft motor to confirm proper venting before allowing the ignition sequence to proceed. When this switch fails or becomes stuck open, the control board cannot verify that the inducer is operating correctly, resulting in a no-heat lockout condition — often indicated by a fault code on the board and no ignition attempt.

• Specs: OEM part number HK06WC061 | Factory-calibrated W.C. (water column) rating | Single-port pressure switch | 24V control circuit compatible — matches original factory specifications exactly
• OEM vs Generic: This is a genuine OEM Carrier pressure switch, ensuring precise W.C. trip-point calibration. Aftermarket substitutes frequently feature incorrect pressure ratings that cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions.
• Install difficulty: 2/5 — Shut off power and gas before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, manometer (recommended for verification). Inspect the rubber hose and port for blockages or cracks before installing the new switch, as a clogged hose is a common root cause of switch failure.
• Warranty: 1-year OEM factory warranty against defects. Orders placed by cutoff time ship the same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier LC348TM402771 furnace. Always verify the W.C. rating stamped on your existing switch matches the replacement before installation. If you are unsure of fitment, our HVAC parts specialists can confirm compatibility before you order — same-day shipping available on all in-stock OEM parts.