OEM Carrier Pressure Switch HK06WC061 for Model LC348LC400281

This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier LC348LC400281 furnace. The pressure switch is a critical safety device that monitors the negative pressure created by the inducer draft motor before allowing the ignition sequence to proceed. When the inducer motor spins up and establishes proper draft, the pressure switch closes and signals the control board that it is safe to open the gas valve and initiate ignition. A failed pressure switch causes the furnace to lock out before ignition — typically leaving homeowners with a flashing fault code indicating an open pressure switch or failed draft-proving condition.

• Specs: OEM part number HK06WC061 | Factory-calibrated W.C. (water column) rating | Single-port pressure switch | 24V control circuit compatible | Direct drop-in replacement for Carrier LC348LC400281
• OEM vs Generic: This OEM pressure switch is factory-calibrated to the exact water column rating required by the LC348LC400281. Aftermarket substitutes frequently ship with off-tolerance trip points, causing nuisance lockouts or — more dangerously — failing to detect a true draft failure. OEM is always the recommended choice for pressure switches.
• Install difficulty: 2/5 — Disconnect power before servicing. Tools needed: flathead screwdriver, needle-nose pliers, and a manometer if verifying W.C. trip point. Inspect the rubber hose connection for cracks or blockage before condemning the switch, as hose issues are a common misdiagnosis.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier LC348LC400281 furnace. Always verify the OEM part number HK06WC061 against your unit's data plate and existing pressure switch label before ordering to confirm W.C. rating and hose port configuration. Our parts specialists are available to verify fitment before you buy — no guesswork required.