OEM Carrier Pressure Switch HK06WC061 for Model LC350LC400676

This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier LC350LC400676 furnace. The pressure switch is a critical safety component that monitors negative pressure created by the inducer draft motor before allowing the ignition sequence to proceed. If the switch fails to close — or is stuck open or closed — the control board will lock out the furnace, preventing any heat output. Common symptoms include a furnace that starts the inducer but never advances to ignition, a blinking fault code indicating a pressure switch error, or intermittent heating failures during cold weather.

• Specs: OEM part number HK06WC061 | Factory-rated W.C. (water column) set point | Single-port design | 24V control circuit compatible | Direct factory replacement — no modification required
• OEM vs Generic: This is a genuine OEM Carrier pressure switch manufactured to exact factory specifications. Generic switches often feature inconsistent W.C. trip points, which can cause nuisance lockouts or — more dangerously — allow the furnace to operate under unsafe draft conditions. Always use OEM for pressure switches.
• Install Difficulty: 3/5 — Shut off power and gas before servicing. Tools needed: flathead screwdriver, needle-nose pliers, and a manometer to verify draft pressure if symptoms persist after replacement. Inspect the pressure port hose and inducer housing for cracks or blockages before condemning the switch.
• Warranty: 1-year OEM factory warranty against defects. Orders ship same business day from our stocked warehouse when placed before 3 PM local time.

Compatibility: Designed specifically for the Carrier LC350LC400676 furnace. Always verify the OEM part number HK06WC061 against your unit's data plate or existing switch label before ordering. If you have any fitment questions, our HVAC parts specialists are available to confirm compatibility before you purchase — ensuring you get the right part the first time.