{"product_id":"carrier-ph3ana024000baaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 670\/470 PSI — PH3ANA024000BAAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 670\/470 PSI for Model PH3ANA024000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier high pressure switch (part number \u003cstrong\u003e312926-252\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH3ANA024000BAAA\u003c\/strong\u003e packaged heat pump system. The high pressure switch is a critical safety control that continuously monitors refrigerant discharge pressure. When system pressure rises beyond the safe threshold, the switch opens the control circuit, shutting down the compressor to prevent catastrophic damage to the system. Common failure symptoms include nuisance high-pressure lockouts, compressor short-cycling, or a system that trips off on a warm day and won't restart without a manual reset.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Cutout: 670 PSI | Cut-in: 470 PSI | Genuine OEM part number 312926-252 | Direct factory replacement — no modifications required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact factory tolerances, ensuring the compressor is protected at precisely the right threshold. Generic aftermarket switches often carry wider pressure tolerances that can allow unsafe operating pressures, shortening compressor life or failing to protect the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant system work must be performed by an EPA 608-certified technician. Tools required: manifold gauge set, adjustable wrench, multimeter. Always recover refrigerant before replacing the switch, and leak-check the port after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer's warranty included. Ships same business day from our warehouse when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH3ANA024000BAAA\u003c\/strong\u003e packaged heat pump. Verify the 670\/470 PSI rating against your unit's data plate and existing switch before ordering. Cross-references: 312926252. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641444913523,"sku":"CARRIE-PH3ANA024000BAAA-PRESSURE_SWITCH-312926-252","price":75.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641444946291,"sku":"CARRIE-PH3ANA024000BAAA-PRESSURE_SWITCH-312926-252-GEN","price":66.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_531fa8e5-b05c-4906-8c9d-ecf96e7573e2.jpg?v=1775033533","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3ana024000baaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}