{"product_id":"payne-pa13pr06000gahaa-pressure-switch-jria74","title":"OEM Payne Pressure Switch HK02ZA395 \/ HK02ZB028 for PA13PR06000GAHAA","description":"\u003ch1\u003eOEM Payne High \u0026amp; Low Pressure Switch for Model PA13PR06000GAHAA\u003c\/h1\u003e\u003cp\u003eThese OEM pressure switches — \u003cstrong\u003eHK02ZA395 (High Pressure Switch)\u003c\/strong\u003e and \u003cstrong\u003eHK02ZB028 (Low Pressure Switch)\u003c\/strong\u003e — are the factory-specified replacements for the \u003cstrong\u003ePayne PA13PR06000GAHAA\u003c\/strong\u003e packaged air conditioning unit. Pressure switches monitor refrigerant pressure on both the high and low sides of the refrigerant circuit, protecting the compressor from operating outside safe pressure limits. When either switch fails or trips, the system will lock out, preventing the compressor from starting and resulting in a no-cooling condition. Common symptoms include the unit failing to start, short-cycling, or triggering a fault code on the control board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e HK02ZA395 — High Side Pressure Switch | HK02ZB028 — Low Side Pressure Switch | Factory-calibrated trip points matched to R-410A operating pressures | Direct OEM replacement for Payne PA13PR06000GAHAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact factory pressure thresholds, ensuring reliable compressor protection. Generic substitutes often use wider tolerance setpoints that can allow damaging operating conditions or cause nuisance trips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant system work requires EPA 608 certification. Tools needed: manifold gauge set, adjustable wrench, multimeter for continuity verification. Always recover refrigerant per EPA regulations before replacing pressure switches. Confirm which switch (high or low side) has failed before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both HK02ZA395 and HK02ZB028. 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 Engineered specifically for the \u003cstrong\u003ePayne PA13PR06000GAHAA\u003c\/strong\u003e packaged air conditioning unit. Verify your existing switch part number (printed on the switch body) matches HK02ZA395 or HK02ZB028 before ordering. If you are unsure which switch has failed, our technical team can help confirm fitment and diagnosis before you buy — just reach out via chat or phone. In stock and ready to ship today.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909061595507,"sku":"PAYNE-PA13PR06000GAHAA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909061628275,"sku":"PAYNE-PA13PR06000GAHAA-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_533015f6-9f1f-44e1-b4b0-163ca813b6e2.jpg?v=1780718520","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa13pr06000gahaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}