{"product_id":"carrier-ph13pa048000abaa-pressure-switch-1vlc9v","title":"OEM Carrier Low Pressure Switch 55-23# for PH13PA048000ABAA","description":"\u003ch1\u003eOEM Carrier 55-23# Low Pressure Switch (312926-258) for Model PH13PA048000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM low pressure switch for the \u003cstrong\u003eCarrier PH13PA048000ABAA\u003c\/strong\u003e heat pump. The low pressure switch continuously monitors refrigerant circuit pressure on the suction side of the system. When refrigerant pressure drops below the factory-set threshold — caused by a refrigerant leak, blocked filter drier, or restricted metering device — the switch opens the control circuit, cutting power to the compressor to prevent catastrophic damage. Common symptoms of a failed low pressure switch include a system that short-cycles immediately after startup, a compressor that won't engage, or fault codes indicating a low-pressure lockout condition.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 55-23# pressure rating | Brass inlet connector | Precision-calibrated diaphragm | Pre-wired leads for direct connection | OEM Part Number: 312926-258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part (FAP), manufactured to exact factory pressure cut-in\/cut-out tolerances. Generic substitutes often carry wider pressure tolerances that can allow the compressor to run under unsafe low-pressure conditions, risking compressor failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant must be safely recovered before disconnecting the pressure switch from the refrigerant circuit. Tools needed: manifold gauge set, refrigerant recovery equipment, adjustable wrench, multimeter. Always follow EPA 608 regulations when handling refrigerants. Verify polarity on wiring leads before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory 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 the direct OEM replacement for the \u003cstrong\u003eCarrier PH13PA048000ABAA\u003c\/strong\u003e heat pump. Also cross-references Sensata PS80-02-F1270 and Factory Authorized Parts designation PSL 312926-258. Verify your unit's data plate and wiring diagram before ordering to confirm this is the low-side switch. Questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641844388211,"sku":"CARRIE-PH13PA048000ABAA-PRESSURE_SWITCH-312926-258","price":74.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641844420979,"sku":"CARRIE-PH13PA048000ABAA-PRESSURE_SWITCH-312926-258-GEN","price":65.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-258_305f7e50-09b5-409d-b11a-cf5d01be06c5.jpg?v=1775036312","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13pa048000abaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}