{"product_id":"carrier-ph13na03000gabaa-pressure-switch-1vlc9v","title":"OEM Carrier High \u0026 Low Pressure Switch Kit for PH13NA03000GABAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch for Model PH13NA03000GABAA\u003c\/h1\u003e\u003cp\u003eThis factory-original pressure switch kit includes both the \u003cstrong\u003ehigh pressure switch (312926-252)\u003c\/strong\u003e and the \u003cstrong\u003elow pressure switch (312926-258)\u003c\/strong\u003e designed as direct OEM replacements for the \u003cstrong\u003eCarrier PH13NA03000GABAA\u003c\/strong\u003e heat pump. Pressure switches are safety devices that monitor refrigerant pressure on both the high-side and low-side of the refrigerant circuit. When refrigerant pressure falls outside the safe operating range — due to low charge, refrigerant leaks, blocked coils, or compressor issues — the pressure switch opens the circuit and shuts the system down to prevent compressor damage. Common symptoms of a failed pressure switch include: the system going into lockout after startup, short-cycling within seconds of compressor engagement, or a no-cooling\/no-heating condition with no other obvious cause.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Includes High Pressure Switch OEM Part # \u003cstrong\u003e312926-252\u003c\/strong\u003e and Low Pressure Switch OEM Part # \u003cstrong\u003e312926-258\u003c\/strong\u003e | Factory-calibrated pressure trip points | Direct plug-in connector | Designed for R-410A refrigerant systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are factory-calibrated to exact trip-point thresholds for the PH13NA03000GABAA refrigerant circuit. Generic alternatives may use wider tolerance trip points, risking nuisance lockouts or — more critically — failure to protect the compressor under abnormal pressure conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant system must be evaluated by a licensed HVAC technician before replacing pressure switches, as a failed switch may indicate an underlying refrigerant charge or airflow issue. Tools needed: multimeter (continuity test), flathead screwdriver, needle-nose pliers. Always disconnect power at the disconnect box before servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e These pressure switches are factory-specified for the \u003cstrong\u003eCarrier PH13NA03000GABAA\u003c\/strong\u003e heat pump. Always verify OEM part numbers 312926-252 and 312926-258 against your unit's wiring diagram or data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us before ordering.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641936269683,"sku":"CARRIE-PH13NA03000GABAA-PRESSURE_SWITCH-312926-252","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641936302451,"sku":"CARRIE-PH13NA03000GABAA-PRESSURE_SWITCH-312926-252-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_543fbdac-0d4c-43ff-9968-f35e11cf0724.jpg?v=1775032989","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13na03000gabaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}