OEM Carrier Pressure Switch HK06WC061 for Model LC350TM400561

This OEM pressure switch (part number HK06WC061) is the factory-specified replacement for the Carrier LC350TM400561 furnace. The pressure switch is a critical safety component that monitors negative pressure produced by the inducer motor to confirm proper venting before allowing ignition to proceed. When this switch fails or sticks, the control board will not advance past the inducer stage, resulting in a no-heat lockout condition. Common symptoms include a furnace that starts the inducer fan but shuts down before ignition, along with a pressure switch fault code displayed on the control board.

• Specs: OEM part number HK06WC061 | Factory-calibrated W.C. (water column) rating | Normally open single-port design | 24V control circuit compatible | Carrier-matched pressure setpoint for safe, reliable operation
• OEM vs Generic: This is a genuine Carrier OEM pressure switch manufactured to exact factory W.C. tolerances. Aftermarket alternatives may use imprecise pressure thresholds, leading to nuisance lockouts or — more dangerously — allowing ignition under improper venting conditions.
• Install Difficulty: 2/5 — Disconnect power before servicing. Tools needed: flathead screwdriver, needle-nose pliers, and a manometer (recommended to verify hose and port condition). Inspect the rubber hose and port for cracks or blockages before installing the new switch, as a clogged hose is a frequent 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 LC350TM400561 furnace. Always cross-reference the part number HK06WC061 against your unit's data plate and wiring diagram to confirm fitment before installation. If you have questions about compatibility, our HVAC parts specialists are available to verify fit before you order. Order today for same-day shipping.