{"product_id":"carrier-ph1zna048000abaa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 395 PSI for PH1ZNA048000ABAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 for Model PH1ZNA048000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-specified high pressure switch for the \u003cstrong\u003eCarrier PH1ZNA048000ABAA\u003c\/strong\u003e heat pump system. The high pressure switch (HK02ZA395) is a critical refrigerant-circuit safety device that monitors system discharge pressure and cuts power to the compressor if pressure exceeds safe operating limits. A failed or tripped high pressure switch will cause the system to lock out, display a fault code, or short-cycle — symptoms commonly misdiagnosed as a refrigerant, compressor, or control board issue. Also included in this listing is the companion \u003cstrong\u003elow pressure switch HK02ZB044\u003c\/strong\u003e (opens 7 PSI \/ closes 22 PSI, 50\" leads), completing the full refrigerant-circuit pressure protection package for this model.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs (HK02ZA395 — High Pressure Switch):\u003c\/strong\u003e Opens at 395 PSI | Closes at 295 PSI | 1\/8\" NPT thread | 240 VAC | PMAX 41B | Sensata PS80-03-0018 platform | Factory-certified OEM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs (HK02ZB044 — Low Pressure Switch):\u003c\/strong\u003e Opens at 7 PSI | Closes at 22 PSI | 50\" wire leads | 24V | Made in Mexico | OEM Carrier RCD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM switches are manufactured to exact cut-in\/cut-out tolerances and carry full agency listings (EN12263, EN60730-2-6). Aftermarket substitutes frequently exhibit pressure drift, causing nuisance trips or — worse — failure to protect the compressor, leading to a costly compressor replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant-side work requires EPA 608 certification. Tools needed: manifold gauge set, adjustable wrench, wire terminals. Always recover refrigerant before disconnecting the high-side switch. Photograph all wiring before removal. Low-side switch replacement is less invasive but system must still be de-energized.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for Carrier model \u003cstrong\u003ePH1ZNA048000ABAA\u003c\/strong\u003e heat pump systems. Cross-references: HK02ZA395 replaces 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, HK02ZA501 and others. Verify OEM part numbers against your unit's wiring diagram or data plate before ordering. \u003cstrong\u003eOrder now and we'll ship it today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641508680051,"sku":"CARRIE-PH1ZNA048000ABAA-PRESSURE_SWITCH-HK02ZA395","price":116.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641508712819,"sku":"CARRIE-PH1ZNA048000ABAA-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_20f89dfe-e7dc-4743-8047-e75409c43d10.jpg?v=1775033188","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1zna048000abaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}