{"product_id":"carrier-ph14nb060000aaaa-pressure-switch-1vlc9v","title":"OEM Carrier High \u0026 Low Pressure Switch Kit for PH14NB060000AAAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit — 312926-252 \u0026amp; 312926-258 for Model PH14NB060000AAAA\u003c\/h1\u003e\u003cp\u003eThis listing covers both factory-specified OEM refrigerant pressure switches for the \u003cstrong\u003eCarrier PH14NB060000AAAA\u003c\/strong\u003e heat pump: the \u003cstrong\u003e312926-252 High Pressure Switch (670-470#)\u003c\/strong\u003e and the \u003cstrong\u003e312926-258 Low Pressure Switch (55-23#)\u003c\/strong\u003e. Together, these safety controls continuously monitor refrigerant circuit pressure. The high-pressure switch opens and locks out the system when refrigerant pressure exceeds safe operating limits — typically caused by a dirty condenser coil, failed condenser fan motor, or refrigerant overcharge. The low-pressure switch opens when pressure drops too low, protecting the compressor from running in a starved-refrigerant condition due to leaks or a failed metering device. Either fault will result in a system lockout, a fault code on the thermostat or control board, or the unit short-cycling within minutes of startup.\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 | Nylon case | Brass contacts | Factory Authorized Part (FAP) | OEM cross-ref: 312926252\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 | Compact aluminum body | Pre-wired leads | Factory Authorized Part (FAP) | OEM cross-ref: 312926258\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e These are genuine Carrier Factory Authorized Parts — not aftermarket copies. OEM switches are factory-calibrated to exact cut-in\/cut-out pressures. Generic substitutes often carry ±10% pressure tolerances, risking nuisance lockouts or, worse, failure to protect the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work requires EPA 608 certification. Recover refrigerant before replacing either switch. Tools needed: manifold gauge set, refrigerant recovery unit, adjustable wrench, multimeter. Always verify switch continuity before condemning. Photograph all wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Both switches are OEM-specified replacements for the \u003cstrong\u003eCarrier PH14NB060000AAAA\u003c\/strong\u003e residential heat pump. Verify your unit's data plate and existing switch cut-in\/cut-out ratings before ordering to confirm exact fitment. Not sure which switch you need? Our HVAC parts specialists verify fitment before you buy — questions welcome.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641746936179,"sku":"CARRIE-PH14NB060000AAAA-PRESSURE_SWITCH-312926-252","price":66.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641746968947,"sku":"CARRIE-PH14NB060000AAAA-PRESSURE_SWITCH-312926-252-GEN","price":58.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_e1a06653-b351-4d1a-a7ef-d1bf10b74089.jpg?v=1775033085","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph14nb060000aaaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}