{"product_id":"carrier-pressure-switch-lc348tm401844","title":"OEM Carrier Pressure Switch LC348TM401844 for Model LC348TM401844","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Pressure Switch LC348TM401844 for Model LC348TM401844\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier pressure switch safeguards your furnace by verifying proper venting and draft before the burner fires. It monitors negative pressure created by the inducer motor; if the vent is blocked or the inducer fails, the switch opens and prevents ignition, protecting against dangerous flue gas spillage. Designed as a direct-fit replacement for Carrier model LC348TM401844, it restores correct sequencing and clears common pressure-switch lockout faults. Installation is moderate in difficulty: disconnect power, label and remove the two electrical terminals and the rubber sensing hose, unfasten the mounting screws, and install the new switch in reverse order—usually 20-30 minutes. Confirm the hose is free of condensate and seated firmly to avoid nuisance trips. Choosing a genuine OEM switch guarantees the correct pressure set point for safe, reliable operation that generics often miss. In stock and ships same-day on orders placed before 3PM CST. Get dependable heat and peace of mind with the exact part your furnace was built to use.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model LC348TM401844.\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":62942616977779,"sku":"carrier-pressure-switch-lc348tm401844","price":42.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-lc348tm401844.jpg?v=1781470845","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pressure-switch-lc348tm401844","provider":"National HVAC Parts","version":"1.0","type":"link"}