{"product_id":"carrier-ch14nb04800gaaaa-pressure-switch-1vlc9v","title":"OEM Carrier Low Pressure Switch 312926-258 for CH14NB04800GAAAA","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch 312926-258 for Model CH14NB04800GAAAA\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 CH14NB04800GAAAA\u003c\/strong\u003e condensing unit. The pressure switch is a critical safety device that monitors the operation of the inducer motor by sensing negative air pressure in the flue system. When the inducer reaches the correct speed and draft, the pressure switch closes, signaling the control board to proceed with the ignition sequence. A failed or stuck-open pressure switch will prevent the system from advancing past the inducer stage, resulting in a no-heat lockout condition. Common symptoms include the inducer running continuously with no ignition, or a blinking fault code on the control board indicating a pressure switch failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Low pressure switch | OEM part number 312926-258 | Factory-calibrated W.C. (water column) rating | Designed to exact Carrier specifications for the CH14NB04800GAAAA platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM pressure switch is precision-calibrated to the exact W.C. rating required by your unit. Generic replacements frequently use looser trip-point tolerances, risking nuisance lockouts or — more dangerously — failure to detect a true flue blockage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power and gas before beginning. Tools needed: 1\/4\" nut driver, needle-nose pliers, and a multimeter to verify switch continuity before installation. Inspect the rubber hose and port for cracks or blockage while the switch is removed, as a cracked hose is a common root cause of switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eCH14NB04800GAAAA\u003c\/strong\u003e condensing unit using OEM part number 312926-258. Always verify your existing part number on the switch body or equipment data plate before ordering to confirm fitment. Not sure? Our HVAC parts specialists verify compatibility before you buy — contact us anytime. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909611966835,"sku":"CARRIE-CH14NB04800GAAAA-PRESSURE_SWITCH-312926-258","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909611999603,"sku":"CARRIE-CH14NB04800GAAAA-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.jpg?v=1782928510","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch14nb04800gaaaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}