OEM Carrier Pressure Switch HK06WC061 for Model LC350HE400813

This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier LC350HE400813 furnace. The pressure switch is a safety device that monitors negative pressure created by the inducer draft motor to confirm adequate venting before allowing the ignition sequence to proceed. When this switch fails — or when a blockage causes it to remain open — the furnace will lock out before ignition, leaving you with no heat. Common symptoms include a blinking fault code indicating a pressure switch fault, the inducer running continuously without the furnace firing, or the furnace cycling off immediately after startup.

• Specs: OEM part number HK06WC061 | Factory-calibrated W.C. (water column) rating matched to Carrier LC350HE400813 | Single-port or dual-port configuration as specified by factory | Designed for use with induced-draft gas furnace applications
• OEM vs Generic: OEM pressure switches are factory-calibrated to the exact water column rating required by your furnace. Aftermarket substitutes frequently carry wider tolerances, which can cause nuisance lockouts or — more dangerously — allow the furnace to fire under insufficient draft conditions, creating a potential carbon monoxide risk.
• Install difficulty: 2/5 — Disconnect power and gas before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify continuity). Inspect the rubber hose connecting the switch to the inducer housing for cracks or blockages before condemning the switch itself.
• Warranty: 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier LC350HE400813 furnace. Always verify the OEM part number HK06WC061 against your unit's data plate or existing switch before ordering. Our fitment team is available to confirm compatibility prior to purchase. In stock and ready to ship today — get your heat back on fast.