{"product_id":"carrier-ph2peb036000aa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch HK02ZA395 for PH2PEB036000AA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 for Model PH2PEB036000AA\u003c\/h1\u003e\u003cp\u003eThis OEM high pressure switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) is the factory-specified refrigerant-side safety device for the \u003cstrong\u003eCarrier PH2PEB036000AA\u003c\/strong\u003e heat pump system. Its job is to monitor refrigerant high-side pressure and open the safety circuit if pressure exceeds the factory cutout threshold — protecting the compressor from catastrophic damage. A failed or stuck-open switch will trigger a system lockout, prevent cooling or heating operation, and may display a fault code on your thermostat or control board. The companion low-side pressure switch \u003cstrong\u003eHK02ZB044\u003c\/strong\u003e is also available and commonly replaced at the same service call.\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 male fitting | 240 VAC rated | SPST normally closed | Sensata PS80 platform | Replaces: 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435\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\" lead wires | 24V | Factory-matched OEM tolerances for the PH2PEB036000AA refrigerant circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are calibrated to exact PSI thresholds at the factory. Generic aftermarket switches frequently carry ±10–15% PSI variance, risking nuisance trips or — worse — under-protection of the compressor. For a refrigerant-side safety device, OEM is always the recommended choice.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant-side pressure switches require system recovery or careful isolation before replacement. Tools needed: refrigerant manifold gauges, 1\/4\" and 5\/16\" flare wrenches, multimeter for continuity verification. EPA 608 certification required if refrigerant is handled. Always de-energize the unit at the disconnect before beginning.\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 \u003cstrong\u003eCarrier model PH2PEB036000AA\u003c\/strong\u003e heat pump systems. Both OEM part numbers — \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e (high pressure) and \u003cstrong\u003eHK02ZB044\u003c\/strong\u003e (low pressure) — are stocked and ready to ship. Verify your unit's data plate and existing switch PSI markings before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641484661107,"sku":"CARRIE-PH2PEB036000AA-PRESSURE_SWITCH-HK02ZA395","price":72.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641484693875,"sku":"CARRIE-PH2PEB036000AA-PRESSURE_SWITCH-HK02ZA395-GEN","price":63.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_071a8773-5286-48f0-8e26-ea74045b112f.jpg?v=1775033583","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2peb036000aa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}