{"product_id":"carrier-py2peb042090aa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 406\/300 PSI — PY2PEB042090AA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 — 406\/300 PSI for Model PY2PEB042090AA\u003c\/h1\u003e\u003cp\u003eThis OEM high pressure switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) is the factory-specified safety control for the \u003cstrong\u003eCarrier PY2PEB042090AA\u003c\/strong\u003e packaged unit. The high pressure switch continuously monitors refrigerant circuit pressure and cuts power to the compressor if system pressure exceeds the safe threshold — protecting the compressor from catastrophic failure caused by over-pressurization. When this switch fails or becomes stuck open, the system will lockout on a high pressure fault, preventing any cooling operation. Common symptoms include: intermittent compressor shutdowns, an active high pressure fault code on the control board, or a complete no-cooling condition even with the system calling for cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at \u003cstrong\u003e406 PSI\u003c\/strong\u003e | Closes at \u003cstrong\u003e300 PSI\u003c\/strong\u003e | Rated \u003cstrong\u003e6(6)A at 240 VAC\u003c\/strong\u003e | PMAX 41B | Manufacturer: Sensata (OEM for Carrier) | Part No. HK02ZA395 \/ HK02ZA395A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part (FAP). OEM pressure switches are calibrated to exact cut-out\/cut-in setpoints. Aftermarket alternatives may deviate from the 406\/300 PSI rating, risking compressor damage or nuisance lockouts — especially critical in packaged commercial units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit pressure must be at equilibrium before replacement. Tools needed: flat-head and Phillips screwdrivers, multimeter (to confirm switch continuity), wire labels. Always de-energize the unit at the disconnect before servicing. Verify refrigerant charge after installation to rule out underlying high-pressure faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse — get your system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Verified direct-fit OEM replacement for Carrier model \u003cstrong\u003ePY2PEB042090AA\u003c\/strong\u003e. Also replaces legacy part numbers: 312926-217, 71267D1, HK02ZA380, HK02ZA396, 19240027, HK02ZA400, 312926-225, 312926-226, 312926-233, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Always confirm the pressure switch setpoint rating on your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640570827123,"sku":"CARRIE-PY2PEB042090AA-PRESSURE_SWITCH-HK02ZA395","price":97.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640570859891,"sku":"CARRIE-PY2PEB042090AA-PRESSURE_SWITCH-HK02ZA395-GEN","price":85.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_e408221c-4e3a-4553-ba0b-48954120ea9d.jpg?v=1775033424","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2peb042090aa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}