{"product_id":"carrier-ph4ang060000bbaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 670\/470 PSI for PH4ANG060000BBAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 670\/470 PSI for Model PH4ANG060000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier high pressure switch (part number \u003cstrong\u003e312926-252\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PH4ANG060000BBAA\u003c\/strong\u003e packaged heat pump unit. The high pressure switch is a critical refrigerant-circuit safety device: it continuously monitors refrigerant discharge pressure and cuts power to the compressor if pressure exceeds the safe operating threshold, protecting the compressor from catastrophic damage due to overcharge, restricted airflow, or a failing condenser fan motor. When this switch fails or trips without resetting, you'll typically experience compressor lockout, nuisance fault codes, or an outdoor unit that shuts down shortly after startup.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Trip (open) pressure: 670 PSI | Reset (close) pressure: 470 PSI | OEM Part Number: 312926-252 | Genuine Carrier factory part\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to exact factory PSI thresholds. Aftermarket alternatives may trip outside specification, leading to either inadequate compressor protection or chronic nuisance lockouts that mask other system issues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit access is required. This repair must be performed by an EPA 608-certified technician. Tools needed: manifold gauge set, refrigerant recovery equipment, wire terminals, and a torque wrench. Always recover refrigerant before removing the switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier PH4ANG060000BBAA\u003c\/strong\u003e 5-ton packaged heat pump. Verify the part number on your existing switch label before ordering. Our technical team is available to confirm fitment — reach out before you buy if you have any questions. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641241817459,"sku":"CARRIE-PH4ANG060000BBAA-PRESSURE_SWITCH-312926-252","price":61.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641241850227,"sku":"CARRIE-PH4ANG060000BBAA-PRESSURE_SWITCH-312926-252-GEN","price":53.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_9c688422-b196-407a-822d-9aedc14c35ab.jpg?v=1775033531","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph4ang060000bbaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}