{"product_id":"carrier-ch16na02400gbaaa-pressure-switch-1vlc9v","title":"OEM Carrier Low Pressure Switch 312926-258 for CH16NA02400GBAAA","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch 312926-258 for Model CH16NA02400GBAAA\u003c\/h1\u003e\u003cp\u003eThis OEM low pressure switch (part number \u003cstrong\u003e312926-258\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier CH16NA02400GBAAA\u003c\/strong\u003e unit. The pressure switch is a critical safety component that monitors the negative pressure created by the inducer draft motor to confirm proper venting before allowing ignition to proceed. When this switch fails or detects insufficient pressure — due to a blocked flue, cracked hose, failed inducer, or a faulty switch itself — the control board locks out the ignition sequence and no heat is produced. Common symptoms include the system attempting to start, the inducer spinning, but the burners never lighting, often accompanied by a fault code indicating a pressure switch error.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Low pressure switch | OEM Part No. 312926-258 | Factory-calibrated W.C. (water column) rating | Designed for correct electrical continuity at proper draft pressure | Direct plug-in connector fit for Carrier CH16NA02400GBAAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is an OEM Carrier pressure switch manufactured to exact factory W.C. ratings and tolerance specifications. Generic aftermarket switches often carry wider tolerances, risking nuisance lockouts or — more dangerously — failure to detect a true venting problem. OEM is strongly recommended for pressure switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Turn off power and gas before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, manometer (recommended to verify draft pressure post-install). Inspect rubber hose ports for cracks and clear any condensate blockage before installing the new switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eCH16NA02400GBAAA\u003c\/strong\u003e. Always confirm the OEM part number 312926-258 against your unit's data plate and existing switch label before ordering. If you need fitment assistance, our HVAC parts specialists are available to verify compatibility before you purchase — same-day shipping available on all in-stock orders.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909611016563,"sku":"CARRIE-CH16NA02400GBAAA-PRESSURE_SWITCH-312926-258","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909611049331,"sku":"CARRIE-CH16NA02400GBAAA-PRESSURE_SWITCH-312926-258-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-312926-258_3397008e-5157-4913-8a75-b0e56299d300.jpg?v=1782928518","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch16na02400gbaaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}