{"product_id":"payne-pa13nr036000aaaa-pressure-switch-jria74","title":"OEM Payne Pressure Switch Kit for PA13NR036000AAAA — HK02ZA395 \/ HK02Z","description":"\u003ch1\u003eOEM Payne High \u0026amp; Low Pressure Switch Kit for Model PA13NR036000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch kit includes both the \u003cstrong\u003ehigh pressure switch (HK02ZA395)\u003c\/strong\u003e and \u003cstrong\u003elow pressure switch (HK02ZB028)\u003c\/strong\u003e factory-specified for the \u003cstrong\u003ePayne PA13NR036000AAAA\u003c\/strong\u003e split-system condenser. Pressure switches monitor refrigerant circuit pressures on both the high-side and low-side to protect the compressor from damage caused by unsafe operating conditions. When either switch fails or detects an out-of-range pressure, the system will lock out — typically presenting as a system that powers on but immediately shuts down, triggers fault codes, or refuses to initiate a cooling cycle altogether.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Includes HK02ZA395 High Pressure Switch and HK02ZB028 Low Pressure Switch | Factory-calibrated trip points | Designed for R-410A refrigerant systems | Direct OEM fit for PA13NR036000AAAA — no modification required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact factory cut-in and cut-out pressures for the PA13NR036000AAAA. Aftermarket substitutes often carry wider pressure tolerances, increasing the risk of nuisance trips or — worse — failing to protect the compressor during a true fault condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work requires EPA 608 certification. Electrical connections are straightforward low-voltage wiring. Tools needed: multimeter, screwdrivers, needle-nose pliers. Always disconnect power and recover refrigerant per local code before servicing pressure switches. Photograph all wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is factory-matched to the \u003cstrong\u003ePayne PA13NR036000AAAA\u003c\/strong\u003e 3-ton R-410A split-system condenser. Always verify your unit's data plate and existing part numbers against HK02ZA395 and HK02ZB028 before ordering. If you're unsure which switch has failed, our HVAC parts specialists can help confirm fitment and diagnose the fault code before you order — call or chat today. In stock and ships today.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909120774515,"sku":"PAYNE-PA13NR036000AAAA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909120807283,"sku":"PAYNE-PA13NR036000AAAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_6eebd696-b1a8-49ee-8ff4-b5ef348dd088.jpg?v=1780718620","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa13nr036000aaaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}