{"product_id":"carrier-ph3ana036000bcaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 670\/470 PSI — PH3ANA036000BCAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 670\/470 PSI for Model PH3ANA036000BCAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM high pressure switch (part# \u003cstrong\u003e312926-252\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH3ANA036000BCAA\u003c\/strong\u003e packaged heat pump unit. The high pressure switch is a critical refrigerant-circuit safety device that continuously monitors discharge-side refrigerant pressure. When system pressure exceeds the factory-set trip point of \u003cstrong\u003e670 PSI\u003c\/strong\u003e, the switch opens the control circuit, shutting down the compressor to prevent catastrophic refrigerant-side damage. It automatically resets at \u003cstrong\u003e470 PSI\u003c\/strong\u003e. Common failure symptoms include nuisance high-pressure lockouts, compressor short-cycling, or the unit failing to maintain cooling or heating with a fault code logged on the control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Trip pressure 670 PSI (cut-out) | Reset pressure 470 PSI (cut-in) | Genuine Carrier OEM part | Certified to EN12263 and EN60730-2-6 standards | Factory Authorized Parts designation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are factory-calibrated to exact cut-out and reset tolerances. Off-brand substitutes frequently drift outside spec, causing either nuisance trips or — worse — failing to protect the compressor at true over-pressure events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — System refrigerant must be recovered before replacing this switch. Tools required: manifold gauge set, refrigerant recovery unit, adjustable wrench, leak-detection solution. Always verify refrigerant charge after reinstallation. Licensed HVAC technician strongly recommended.\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 Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier PH3ANA036000BCAA\u003c\/strong\u003e packaged heat pump. Verify the part number on the existing switch's label before ordering — the 312926-252 is specific to the 670\/470 PSI pressure rating. Our fitment team is available to confirm compatibility before you order. Order today for same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641429840243,"sku":"CARRIE-PH3ANA036000BCAA-PRESSURE_SWITCH-312926-252","price":61.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641429873011,"sku":"CARRIE-PH3ANA036000BCAA-PRESSURE_SWITCH-312926-252-GEN","price":53.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_aaf30d0e-1236-42e7-808d-24c4babee26e.jpg?v=1775033536","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3ana036000bcaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}