{"product_id":"carrier-ph3ana060000bbaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 312926-252 for PH3ANA060000BBAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 312926-252 for Model PH3ANA060000BBAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM high pressure switch (part number \u003cstrong\u003e312926-252\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH3ANA060000BBAA\u003c\/strong\u003e packaged heat pump unit. The high pressure switch is a critical safety component that continuously monitors refrigerant pressure on the high side of the refrigerant circuit. When system pressure exceeds safe operating limits — due to a dirty condenser coil, refrigerant overcharge, blocked airflow, or a failing condenser fan motor — the switch opens the control circuit and shuts the compressor down to prevent catastrophic failure. Common symptoms of a failed high pressure switch include the system locking out on a fault code, the compressor short-cycling, or the unit not cooling or heating despite the outdoor unit running briefly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e High-side refrigerant pressure switch | Factory-calibrated cut-out and cut-in set points | Direct OEM replacement | Carrier part number 312926-252\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM switch is manufactured to Carrier's exact pressure thresholds and electrical ratings. Generic substitutes often use wider cut-out tolerances, risking nuisance trips or — worse — failing to protect the compressor at the correct pressure threshold.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Requires EPA 608 certification to handle refrigerant. Recover system refrigerant before replacing. Tools needed: manifold gauge set, refrigerant recovery unit, 1\" open-end wrench, and a multimeter to confirm switch continuity before reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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 Engineered as a direct OEM replacement for the Carrier \u003cstrong\u003ePH3ANA060000BBAA\u003c\/strong\u003e packaged heat pump. Always verify your unit's data plate and existing switch set-point markings before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641404379507,"sku":"CARRIE-PH3ANA060000BBAA-PRESSURE_SWITCH-312926-252","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641404412275,"sku":"CARRIE-PH3ANA060000BBAA-PRESSURE_SWITCH-312926-252-GEN","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_e010393d-3624-43d0-a078-554256b9454a.jpg?v=1775033180","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3ana060000bbaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}