{"product_id":"carrier-ph13nb036000abaa-pressure-switch-1vlc9v","title":"OEM Carrier High \u0026 Low Pressure Switch Kit for PH13NB036000ABAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit (312926-252 \/ 312926-258) for Model PH13NB036000ABAA\u003c\/h1\u003e\u003cp\u003eThese are the factory-specified OEM high and low pressure switches for the \u003cstrong\u003eCarrier PH13NB036000ABAA\u003c\/strong\u003e heat pump system. The high pressure switch (312926-252, rated \u003cstrong\u003e670\/470 PSI\u003c\/strong\u003e cut-out\/cut-in) and low pressure switch (312926-258) work as a matched safety pair — monitoring refrigerant pressure on both the high and low sides of the refrigerant circuit. When either switch detects pressure outside the safe operating window, it signals the control board to shut down the compressor, protecting the system from catastrophic failure. Common failure symptoms include nuisance tripping, fault codes indicating high or low pressure lockout, compressor short-cycling, or a system that runs briefly then shuts off without reaching setpoint.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e High Pressure Switch 312926-252 — 670 PSI cut-out \/ 470 PSI cut-in | Low Pressure Switch 312926-258 — matched factory calibration | Genuine Carrier OEM components | Certified to EN12263 \/ EN60730-2-6 safety standards\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 cut-in thresholds for the PH13NB036000ABAA refrigerant circuit. Aftermarket switches frequently carry wider pressure tolerances, risking either nuisance trips or — more dangerously — failing to protect the compressor from over-pressurization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work must be performed by an EPA Section 608-certified technician. Tools required: manifold gauge set, torque wrench, flare-nut wrenches, multimeter for continuity verification. Always recover refrigerant per EPA regulations before opening the system. 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 on orders placed before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH13NB036000ABAA\u003c\/strong\u003e heat pump. Verify your unit's data plate refrigerant type and confirm both OEM part numbers (312926-252 and 312926-258) against your service manual before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us today and ship the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641917657459,"sku":"CARRIE-PH13NB036000ABAA-PRESSURE_SWITCH-312926-252","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641917690227,"sku":"CARRIE-PH13NB036000ABAA-PRESSURE_SWITCH-312926-252-GEN","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_c56fbb04-b464-4460-bb2e-8f6b563fe3f9.jpg?v=1775033009","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb036000abaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}