{"product_id":"carrier-py1pnb060090aaaa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 406\/300 PSI for PY1PNB060090AAAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 — 406\/300 PSI for Model PY1PNB060090AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier high pressure safety switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier PY1PNB060090AAAA\u003c\/strong\u003e packaged heat pump unit. The high pressure switch is a critical refrigerant-circuit safety device that monitors system discharge pressure and opens the control circuit if pressure exceeds a safe threshold — protecting the compressor from catastrophic failure due to refrigerant overcharge, blocked condenser coil, or restricted airflow. Failure symptoms include: system trips off on a fault code, compressor short-cycles, or the unit locks out and will not restart without a manual reset.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 406 PSI | Closes at 300 PSI | 1\/8\" NPT thread connection | Rated 6(6)A at 240 VAC | PMAX 41B | Sensata PS80-03-0018 platform | Replaces HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, and more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch manufactured to exact factory pressure tolerances. Generic aftermarket switches frequently deviate from set-point specs, risking either false trips under normal load or, worse, failure to open under true overpressure — both of which accelerate compressor wear and void manufacturer warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always recover refrigerant and depressurize the system before replacing a high pressure switch. Tools needed: refrigerant recovery machine, manifold gauges, adjustable wrench, Teflon tape, leak detection solution. Torque the 1\/8\" NPT fitting carefully to avoid cracking the switch body. Verify system pressures after recharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and tested for the \u003cstrong\u003eCarrier PY1PNB060090AAAA\u003c\/strong\u003e packaged heat pump. This switch also supersedes numerous legacy Carrier\/Bryant part numbers — confirm your unit's refrigerant type and discharge pressure rating against your data plate before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and we'll ship your order the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640901259635,"sku":"CARRIE-PY1PNB060090AAAA-PRESSURE_SWITCH-HK02ZA395","price":68.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640901292403,"sku":"CARRIE-PY1PNB060090AAAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":60.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_d6e8f92a-8f80-4523-979e-a797644374bf.jpg?v=1775033404","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pnb060090aaaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}