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This OEM pressure switch (part number HK06WC061) is the factory-specified replacement for the Carrier LC350HE400809 furnace. The pressure switch is a critical safety component 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, the furnace will lock out before ignition — often displaying a pressure switch fault code — leaving you with no heat. Common symptoms include repeated short-cycling, a flashing fault code on the control board, or a furnace that runs the inducer motor but never advances to ignition.
Compatibility: Engineered specifically for the Carrier LC350HE400809 furnace. Always cross-reference the part number HK06WC061 against your unit's wiring diagram and data plate before ordering. If you're unsure about fitment, our HVAC parts specialists are available to verify compatibility before you purchase — ensuring you get the right part the first time.