{"product_id":"carrier-ph1pnb036000abaa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch HK02ZA395 for PH1PNB036000ABAA","description":"\u003ch1\u003eOEM Carrier High Pressure Switch HK02ZA395 for Model PH1PNB036000ABAA\u003c\/h1\u003e\u003cp\u003eThis genuine OEM Carrier high pressure safety switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH1PNB036000ABAA\u003c\/strong\u003e heat pump system. The high pressure switch monitors refrigerant pressure on the discharge side of the compressor and opens the safety circuit when pressure exceeds safe operating limits — protecting the compressor from catastrophic over-pressure failure. When this switch fails or trips, symptoms include nuisance high-pressure lockouts, no-cooling or no-heating operation, and fault codes on the control board. A secondary low pressure switch, \u003cstrong\u003eHK02ZB044\u003c\/strong\u003e (opens at 7 PSI \/ closes at 22 PSI), is also associated with this model and sold separately — consider inspecting both switches during diagnosis.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 395 PSI | Closes at 295 PSI | 1\/8\" NPT thread | 240 VAC rated | Sensata PS80-03-0018 platform | OEM part number HK02ZA395\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch — factory-matched pressure thresholds ensure the compressor is protected at the exact design set points. Aftermarket switches with loose tolerances can allow over-pressure conditions that void compressor warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Recover all refrigerant before disconnecting the switch (EPA Section 608 required). Tools needed: manifold gauge set, refrigerant recovery machine, 1-1\/16\" open-end wrench, thread sealant (PTFE tape rated for refrigerant). Always verify system pressure is zero before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM ET.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for \u003cstrong\u003eCarrier model PH1PNB036000ABAA\u003c\/strong\u003e. Also replaces legacy part numbers: 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify the open\/close PSI ratings on your unit's data plate before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641585127795,"sku":"CARRIE-PH1PNB036000ABAA-PRESSURE_SWITCH-HK02ZA395","price":93.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641585160563,"sku":"CARRIE-PH1PNB036000ABAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":81.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_6153a283-4694-4b0e-bb93-a85e3ae150ad.jpg?v=1775033560","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1pnb036000abaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}