{"product_id":"carrier-ph1zpa048000abaa-pressure-switch-jria74","title":"OEM Carrier High \u0026 Low Pressure Switch Kit HK02ZA395 HK02ZB044 — PH1ZP","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit HK02ZA395 \/ HK02ZB044 for Model PH1ZPA048000ABAA\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM pressure switch set is the direct replacement for the \u003cstrong\u003eCarrier PH1ZPA048000ABAA\u003c\/strong\u003e heat pump system. The kit includes two critical safety switches that work in tandem to protect the refrigerant circuit: the \u003cstrong\u003eHK02ZA395 high pressure switch\u003c\/strong\u003e (opens at 395 PSI \/ closes at 295 PSI) and the \u003cstrong\u003eHK02ZB044 low pressure switch\u003c\/strong\u003e (opens at 7 PSI \/ closes at 22 PSI, 50\" leads, 24V). When either switch fails, the system will typically lock out, short-cycle, or fail to cool entirely — symptoms often misdiagnosed as compressor or refrigerant issues.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZA395 High Pressure Switch:\u003c\/strong\u003e Opens 395 PSI | Closes 295 PSI | 1\/8\" NPT thread | 240 VAC | Sensata PS80 platform | Replaces 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, and more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZB044 Low Pressure Switch:\u003c\/strong\u003e Opens 7 PSI | Closes 22 PSI | 50\" leads | 24V | OEM Carrier RCD | Country of Origin: Mexico\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to exact factory cut-in\/cut-out setpoints. Aftermarket substitutes frequently drift outside tolerance, triggering nuisance lockouts or — worse — failing to protect the compressor from dangerous pressure extremes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant system must be safely recovered before replacing the high pressure switch. Low pressure switch replacement is less invasive but requires careful lead routing. Tools needed: manifold gauge set, 1\" open-end wrench, Schrader valve core tool, thread sealant tape. Always verify system pressures with gauges after replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. Orders ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PH1ZPA048000ABAA\u003c\/strong\u003e packaged heat pump unit. Verify refrigerant type and system operating pressures against your unit's data plate before ordering. Our technical team is available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641491542387,"sku":"CARRIE-PH1ZPA048000ABAA-PRESSURE_SWITCH-HK02ZA395","price":116.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641491575155,"sku":"CARRIE-PH1ZPA048000ABAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":102.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_c7a36e27-3ade-4dc7-89c1-8432bce881d4.jpg?v=1775033171","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1zpa048000abaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}