{"product_id":"carrier-ph2peb042000aa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch HK02ZA395 for PH2PEB042000AA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 for Model PH2PEB042000AA\u003c\/h1\u003e\u003cp\u003eThis OEM high pressure safety switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH2PEB042000AA\u003c\/strong\u003e heat pump system. The high pressure switch is a critical refrigerant-circuit safety device: it continuously monitors refrigerant discharge pressure and opens the circuit when pressure exceeds the factory set point, preventing compressor damage or refrigerant line failure. When this switch fails or trips and won't reset, your system will lock out on a high-pressure fault — typically resulting in no cooling, a flashing fault code, or a system that shuts off within minutes of startup.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZA395:\u003c\/strong\u003e Opens at \u003cstrong\u003e395 PSI\u003c\/strong\u003e | Closes at \u003cstrong\u003e295 PSI\u003c\/strong\u003e | \u003cstrong\u003e240 VAC\u003c\/strong\u003e | 6(6)A rated | 1\/8\" NPT thread | Sensata PS80 platform | PMAX 41B | Certifications: EN12263, ENEC05, EN60730-2-6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a safety-critical refrigerant pressure switch — OEM is strongly recommended. Factory-spec trip points (395\/295 PSI) are precision-calibrated for the PH2PEB042000AA refrigerant circuit. Aftermarket substitutes with loose tolerances risk nuisance trips or, worse, under-protection of the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant must be recovered before replacing this switch on a pressurized circuit. Tools needed: manifold gauge set, refrigerant recovery unit, 1\/8\" NPT fittings, Teflon tape, multimeter. Licensed technician recommended for refrigerant handling. Always confirm system is de-energized before servicing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PH2PEB042000AA\u003c\/strong\u003e heat pump. Also cross-references legacy part numbers including 312926-217, 71267D1, HK02ZA380, HK02ZA396, and 19240027. A secondary pressure switch, \u003cstrong\u003eHK02ZB044\u003c\/strong\u003e (Low Pressure Switch — 7 PSI Open \/ 22 PSI Close, 50\" leads, 24V), is also used on this model and is available separately on our site. Verify your unit's data plate and wiring diagram to confirm which switch requires replacement before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641479745907,"sku":"CARRIE-PH2PEB042000AA-PRESSURE_SWITCH-HK02ZA395","price":65.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641479778675,"sku":"CARRIE-PH2PEB042000AA-PRESSURE_SWITCH-HK02ZA395-GEN","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_1dc3deb2-3acb-45c1-8a01-b924a288bd17.jpg?v=1775033586","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2peb042000aa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}