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This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier LC350LC400470 furnace. The pressure switch is a safety device that monitors negative pressure created by the inducer draft motor. Before allowing ignition to proceed, it confirms the inducer is operating correctly and that the flue path is clear. When this switch fails — or becomes stuck open — the control board cannot verify proper draft, and the furnace will lock out before ever reaching the ignition stage. Common symptoms include a furnace that runs the inducer but never advances to heating, repeated error codes for pressure switch faults, or a furnace that attempts ignition briefly before shutting down entirely.
Compatibility: Designed specifically for the Carrier LC350LC400470 furnace. Always confirm the OEM part number HK06WC061 against your unit's data plate or existing switch label before ordering. Our fitment team is available to verify compatibility prior to purchase. Order today and enjoy same-day shipping on all in-stock OEM Carrier parts.