{"product_id":"carrier-pressure-switch-lc348tm402770","title":"OEM Carrier Pressure Switch LC348TM402770 for Model LC348TM402770","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Pressure Switch LC348TM402770 for Model LC348TM402770\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier pressure switch is the genuine combustion-safety component for Carrier model LC348TM402770 gas furnaces, verifying proper inducer draft and venting before the burners are allowed to light. A failed or drifting switch triggers ignition lockouts and no-heat faults, or unsafely permits firing without adequate airflow—this exact-fit factory replacement restores correct pressure sensing and safe, reliable operation. Calibrated to Carrier's precise trip point and built with the right port configuration, it protects against the false trips and incorrect set points common to universal switches. Installation is a moderate repair suited to experienced DIYers and quick for technicians: disconnect power, remove the hose from the port, transfer the electrical leads, and mount the new switch, confirming the tubing is clear and free of condensate. Restoring an accurate pressure switch keeps your furnace both reliable and safe through the heating season. In stock and ready to ship same-day on every order placed before 3PM CST, so your Carrier system is protected and running fast.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model LC348TM402770.\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":62942616093043,"sku":"carrier-pressure-switch-lc348tm402770","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-lc348tm402770.jpg?v=1781470847","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pressure-switch-lc348tm402770","provider":"National HVAC Parts","version":"1.0","type":"link"}