{"product_id":"carrier-ph13nb01900gaaaa-pressure-switch-1vlc9v","title":"OEM Carrier High \u0026 Low Pressure Switch Kit 670\/470# — PH13NB01900GAAAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit for Model PH13NB01900GAAAA\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM pressure switch kit contains both the \u003cstrong\u003ehigh pressure switch (312926-252, 670\/470 PSI)\u003c\/strong\u003e and the \u003cstrong\u003elow pressure switch (312926-258)\u003c\/strong\u003e specified for the \u003cstrong\u003eCarrier PH13NB01900GAAAA\u003c\/strong\u003e heat pump. These switches are critical refrigerant-circuit safety controls: the high-side switch cuts the compressor when discharge pressure exceeds safe limits, while the low-side switch shuts down operation if suction pressure drops too low — both preventing catastrophic compressor failure. Common failure symptoms include nuisance high-pressure lockouts, compressor short-cycling, error codes for low refrigerant pressure, or a system that runs briefly then trips off.\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 | Normally closed (N\/C) | Factory-calibrated | Meets EN12263 \u0026amp; EN60730-2-6 standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are factory-calibrated to exact cut-in\/cut-out thresholds. Generic alternatives often carry wide pressure tolerances that can allow unsafe operating conditions or trigger false trips, shortening compressor life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant recovery is required before replacing pressure switches on a sealed system. Tools needed: manifold gauge set, refrigerant recovery machine, torque wrench, and multimeter. EPA Section 608 certification required. Always verify system pressure after reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Orders ship same business day from our warehouse when placed before 5 PM EST.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the direct OEM replacement for \u003cstrong\u003eCarrier model PH13NB01900GAAAA\u003c\/strong\u003e heat pumps. Includes both high-side (312926-252) and low-side (312926-258) switches. Confirm refrigerant type and system tonnage against your unit's data plate before ordering. Have questions about fit? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641927979379,"sku":"CARRIE-PH13NB01900GAAAA-PRESSURE_SWITCH-312926-252","price":59.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641928012147,"sku":"CARRIE-PH13NB01900GAAAA-PRESSURE_SWITCH-312926-252-GEN","price":52.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_c764f59c-fe37-4536-ad8f-dedeaed7ae7c.jpg?v=1775032979","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb01900gaaaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}