{"product_id":"carrier-ph16na03600gacaa-pressure-switch-1vlc9v","title":"OEM Carrier Low Pressure Switch 55-23# for PH16NA03600GACAA","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch 55-23# (312926-258) for Model PH16NA03600GACAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM \u003cstrong\u003eCarrier Low Pressure Switch\u003c\/strong\u003e (part number \u003cstrong\u003e312926-258\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH16NA03600GACAA\u003c\/strong\u003e heat pump system. The low pressure switch continuously monitors refrigerant-side pressure and acts as a critical safety device: when refrigerant pressure falls below the factory-set threshold, the switch opens and interrupts operation to prevent compressor damage from low-charge or restricted-flow conditions. A failed low pressure switch typically causes repeated short-cycling, a system lockout fault code, or a unit that starts briefly and shuts down within seconds.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 55-23# Low Pressure Switch | Manufacturer: Carrier (OEM) | Cross-reference: Sensata PS80-02-F1270 | Pre-wired with color-coded leads | Brass inlet connector with precision-calibrated diaphragm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is factory-calibrated to exact cut-in\/cut-out pressure thresholds for the PH16NA03600GACAA. Aftermarket switches may carry wider pressure tolerances, risking nuisance trips or — worse — failure to protect the compressor under a genuine low-charge condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always recover refrigerant per EPA Section 608 regulations before opening the refrigerant circuit. Tools needed: manifold gauge set, refrigerant recovery unit, adjustable wrench, multimeter. Photograph all wiring before disconnecting leads. Verify system pressure after reinstallation before restarting.\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 for the \u003cstrong\u003eCarrier PH16NA03600GACAA\u003c\/strong\u003e heat pump. Always verify your unit's data plate and existing switch markings match the 55-23# specification before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641662787955,"sku":"CARRIE-PH16NA03600GACAA-PRESSURE_SWITCH-312926-258","price":74.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641662820723,"sku":"CARRIE-PH16NA03600GACAA-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_24b6be3f-262c-41df-a0b8-0a7600720312.jpg?v=1775036349","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph16na03600gacaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}