{"product_id":"carrier-pressure-switch-lc348tm401747","title":"OEM Carrier Pressure Switch LC348TM401747 for Model LC348TM401747","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Pressure Switch LC348TM401747 for Model LC348TM401747\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier pressure switch ensures your furnace vents safely by confirming inducer draft before allowing ignition. It monitors the negative pressure generated by the draft inducer motor; if venting is restricted or the inducer underperforms, the switch opens to stop the burner and prevent hazardous flue gas spillage. Designed as a direct-fit replacement for Carrier model LC348TM401747, it resolves pressure-switch lockout codes and restores proper ignition sequencing. Installation difficulty is moderate: disconnect power, label and remove the electrical terminals and rubber sensing tube, unscrew the mounting bracket, and install the new switch in reverse—about 20-30 minutes. Verify the sensing hose is clear of condensate and tightly seated to avoid nuisance trips. A genuine OEM switch maintains the exact factory pressure set point generics often miss, keeping operation safe and reliable. In stock and ships same-day on orders before 3PM CST. Choose the correct part your furnace depends on for trouble-free heating.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model LC348TM401747.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942617174387,"sku":"carrier-pressure-switch-lc348tm401747","price":42.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-lc348tm401747.jpg?v=1781470842","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pressure-switch-lc348tm401747","provider":"National HVAC Parts","version":"1.0","type":"link"}