{"product_id":"carrier-lc348lc400400-pressure-switch-h43sg3","title":"OEM Carrier Pressure Switch for LC348LC400400 — HK06WC061","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK06WC061 for Model LC348LC400400\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch (part number \u003cstrong\u003eHK06WC061\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier LC348LC400400\u003c\/strong\u003e furnace. The pressure switch is a critical 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 sticks closed\/open, the furnace control board detects a fault and locks out the system — resulting in no heat, a flashing fault code, or a furnace that cycles the inducer repeatedly without ever reaching ignition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM-rated water column (W.C.) pressure setpoint factory-matched to Carrier LC348LC400400 | Single-port or dual-port configuration per factory spec | 24V control circuit compatible | Replaces part number HK06WC061 directly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact W.C. tolerances required by your furnace's control board. Aftermarket switches with imprecise setpoints can cause nuisance lockouts or — more dangerously — allow the furnace to fire under unsafe draft conditions. Always use OEM for pressure-critical safety components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power and gas before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, and a digital manometer (recommended to verify draft pressure post-install). Photograph all hose and wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders ship same business day when placed before cutoff from our climate-controlled parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility \u0026amp; Ordering:\u003c\/strong\u003e This pressure switch is specified for the \u003cstrong\u003eCarrier LC348LC400400\u003c\/strong\u003e furnace. Before ordering, verify your existing switch's W.C. rating and port count against your unit's wiring diagram — incorrect W.C. ratings will cause lockout faults even on a brand-new switch. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy. \u003cstrong\u003eIn stock and ready to ship today\u003c\/strong\u003e — get your heat back on schedule.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909309485427,"sku":"CARRIE-LC348LC400400-PRESSURE_SWITCH-HK06WC061","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909309518195,"sku":"CARRIE-LC348LC400400-PRESSURE_SWITCH-HK06WC061-GEN","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-draft-inducer-HK06WC061_411e9e25-cad2-498f-8406-e60d15668508.jpg?v=1782929881","url":"https:\/\/nationalhvacparts.com\/products\/carrier-lc348lc400400-pressure-switch-h43sg3","provider":"National HVAC Parts","version":"1.0","type":"link"}