{"product_id":"carrier-ph16na06000gacaa-pressure-switch-1vlc9v","title":"OEM Carrier Low Pressure Switch 55-23# for PH16NA06000GACAA","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch 55-23# (312926-258) for Model PH16NA06000GACAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-specified low pressure switch for the \u003cstrong\u003eCarrier PH16NA06000GACAA\u003c\/strong\u003e heat pump. The low pressure switch (part number \u003cstrong\u003e312926-258\u003c\/strong\u003e) continuously monitors refrigerant pressure on the low side of the refrigerant circuit. When suction-side pressure drops below the factory-calibrated threshold — typically caused by low refrigerant charge, a blocked metering device, or a failed TXV — the switch opens the compressor control circuit, triggering a system lockout and protecting the compressor from damage due to oil starvation or slugging. Symptoms of a failed or tripped low pressure switch include the system going into lockout after a short run cycle, a fault code on the control board, or the compressor refusing to energize even with adequate refrigerant charge.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 55-23# pressure rating | Normally closed (N.C.) contact configuration | Factory-calibrated cutout\/cut-in set points | Pre-wired leads for direct OEM plug-in connection | Sensata \/ Factory Authorized Parts assembly\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 OEM tolerances. Aftermarket substitutes often carry wider pressure tolerances (±5 PSI or more), risking nuisance lockouts or — worse — inadequate compressor protection under true low-pressure fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Recover all refrigerant before opening the low-side circuit. Tools needed: manifold gauge set, refrigerant recovery machine, adjustable wrench, and a multimeter to verify switch continuity before reinstalling. Always replace the Schrader valve core or O-ring on the low-side port during service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH16NA06000GACAA\u003c\/strong\u003e residential split-system heat pump. Verify the 55-23# pressure rating and connector lead configuration against your unit's data plate and wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you check out — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641662591347,"sku":"CARRIE-PH16NA06000GACAA-PRESSURE_SWITCH-312926-258","price":74.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641662624115,"sku":"CARRIE-PH16NA06000GACAA-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_f6caf382-b722-4166-913c-5acff6eb08ce.jpg?v=1775036354","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph16na06000gacaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}