{"product_id":"carrier-ph4ang024000baaa-pressure-switch-1vlc9v","title":"OEM Carrier High Pressure Switch 670-470# for PH4ANG024000BAAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 670-470# for Model PH4ANG024000BAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM high pressure switch (part# \u003cstrong\u003e312926-252\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier PH4ANG024000BAAA\u003c\/strong\u003e packaged heat pump unit. The high pressure switch monitors refrigerant discharge pressure and cuts power to the compressor circuit if pressure exceeds safe operating limits — protecting the compressor from catastrophic failure. When this switch fails or trips and won't reset, you'll typically see symptoms such as nuisance high-pressure lockouts, no-cooling with a fault code, or a system that short-cycles and shuts down shortly after startup. Replacing this switch with the correct OEM part ensures factory-calibrated trip and reset thresholds are maintained.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 670 PSI cut-out \/ 470 PSI cut-in | Refrigerant high-side pressure switch | Factory OEM part# 312926-252 | Meets EN12263 and EN60730-2-6 standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to Carrier's exact 670\/470 PSI thresholds. Aftermarket alternatives often carry wider tolerances, risking either premature nuisance trips or delayed shutdown — both damaging to compressor longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant system must be recovered before replacing this switch on a sealed circuit. Tools needed: manifold gauge set, recovery machine, refrigerant scale, adjustable wrench, and leak detector. Licensed EPA 608-certified technician required.\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 Verified fit for Carrier model \u003cstrong\u003ePH4ANG024000BAAA\u003c\/strong\u003e packaged heat pump. Always confirm part number 312926-252 against your unit's data plate or wiring diagram before ordering. Our fitment team is available to verify compatibility before you purchase — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641295196531,"sku":"CARRIE-PH4ANG024000BAAA-PRESSURE_SWITCH-312926-252","price":61.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641295229299,"sku":"CARRIE-PH4ANG024000BAAA-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_897e6bd6-9e02-4eb9-a94a-1e8c6358f014.jpg?v=1775033496","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph4ang024000baaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}