{"product_id":"carrier-ph3ana030000bbaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 670-470# for PH3ANA030000BBAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 312926-252 (670-470#) for Model PH3ANA030000BBAA\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 PH3ANA030000BBAA\u003c\/strong\u003e packaged heat pump system. The high pressure switch is a critical refrigerant-circuit safety device: it continuously monitors system discharge pressure and opens the control circuit if pressure exceeds a safe threshold — protecting the compressor from catastrophic damage. When this switch fails or wears out, you may experience nuisance high-pressure lockouts, the system failing to start or short-cycling, or a compressor that shuts down shortly after energizing even when pressures appear normal.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Cut-out pressure: \u003cstrong\u003e670 PSIG\u003c\/strong\u003e | Cut-in pressure: \u003cstrong\u003e470 PSIG\u003c\/strong\u003e | OEM Carrier part number: \u003cstrong\u003e312926-252\u003c\/strong\u003e | Factory Authorized Part — meets all original design tolerances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part, engineered to exact cut-out and cut-in pressure specifications. Generic switches often deviate from rated setpoints, risking premature trips or, worse, allowing over-pressure conditions that damage the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work must be performed by an EPA 608-certified technician. Tools required: manifold gauge set, refrigerant recovery equipment, adjustable wrench, and a multimeter to verify continuity before and after replacement. Always recover refrigerant before disconnecting the switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered by cutoff time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH3ANA030000BBAA\u003c\/strong\u003e packaged heat pump. Always verify the part number against your unit's data plate and wiring diagram before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment — contact us before you order. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641439900019,"sku":"CARRIE-PH3ANA030000BBAA-PRESSURE_SWITCH-312926-252","price":61.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641439932787,"sku":"CARRIE-PH3ANA030000BBAA-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_8f5cdd70-06bf-429d-8121-3e9a8f4febba.jpg?v=1775033489","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3ana030000bbaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}