{"product_id":"carrier-ph15nb02400gbaaa-pressure-switch-1vlc9v","title":"OEM Carrier High \u0026 Low Pressure Switch Kit for PH15NB02400GBAAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit (312926-252 \u0026amp; 312926-258) for Model PH15NB02400GBAAA\u003c\/h1\u003e\u003cp\u003eThis factory-authorized OEM pressure switch kit includes both the \u003cstrong\u003ehigh pressure switch (312926-252, 670-470#)\u003c\/strong\u003e and the \u003cstrong\u003elow pressure switch (312926-258, 55-23#)\u003c\/strong\u003e designed specifically for the \u003cstrong\u003eCarrier PH15NB02400GBAAA\u003c\/strong\u003e heat pump. Pressure switches serve as the refrigerant circuit's first line of defense: the high-side switch trips and shuts down the compressor when discharge pressure exceeds safe limits (670# cut-out \/ 470# cut-in), while the low-side switch opens the control circuit when suction pressure drops dangerously low (55# cut-out \/ 23# cut-in). Common failure symptoms include nuisance lockouts with a pressure fault code, the system short-cycling immediately after startup, or a compressor that runs only briefly before going into hard lockout — all without any refrigerant leak or mechanical issue present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — High Pressure Switch (312926-252):\u003c\/strong\u003e 670 PSI cut-out \/ 470 PSI cut-in | Auto-reset | SPST normally closed | Factory Authorized Part (FAP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — Low Pressure Switch (312926-258):\u003c\/strong\u003e 55 PSI cut-out \/ 23 PSI cut-in | Auto-reset | SPST normally closed | Factory Authorized Part (FAP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e These are genuine Carrier Factory Authorized Parts, matched to exact cut-in\/cut-out calibration for the PH15NB02400GBAAA refrigerant circuit. Generic switches frequently carry wider pressure tolerances, risking nuisance trips or — worse — failing to protect the compressor at the correct threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant recovery is required before replacing pressure switches on a sealed system. Tools needed: manifold gauge set, recovery machine, torque wrench, 1\/4\" flare fittings, and a multimeter to confirm open\/closed state before reinstallation. Licensed EPA 608-certified technician required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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 as the direct OEM replacement for \u003cstrong\u003eCarrier model PH15NB02400GBAAA\u003c\/strong\u003e. Always verify refrigerant type and pressure ratings on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — call or chat today. Order before 3 PM and your part ships the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641675895155,"sku":"CARRIE-PH15NB02400GBAAA-PRESSURE_SWITCH-312926-252","price":61.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641675927923,"sku":"CARRIE-PH15NB02400GBAAA-PRESSURE_SWITCH-312926-252-GEN","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_5551e4ed-9014-415a-a58a-4e14d7da669c.jpg?v=1775033112","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph15nb02400gbaaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}