{"product_id":"payne-pa13er06000gadaa-pressure-switch-jria74","title":"OEM Payne Pressure Switch Kit for PA13ER06000GADAA — HK02ZA395 \/ HK02Z","description":"\u003ch1\u003eOEM Payne High \u0026amp; Low Pressure Switch Kit for Model PA13ER06000GADAA\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 PA13ER06000GADAA\u003c\/strong\u003e packaged air conditioning unit. Pressure switches prove that the inducer motor or refrigerant circuit is operating within safe parameters before allowing the system to advance through its heating or cooling sequence. When either switch fails, the control board detects an open circuit and locks out ignition or compressor operation — resulting in a system that runs the inducer fan but never advances to heat, or trips a fault code related to pressure proving failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Includes both high-stage (HK02ZA395) and low-stage (HK02ZB028) pressure switches | Factory W.C. (water column) ratings matched to PA13ER06000GADAA inducer and refrigerant circuit | SPST normally-open configuration | 1\/4\" Hose port fitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches maintain precise W.C. trip points calibrated to this specific unit. Aftermarket alternatives frequently use wider tolerance thresholds, causing nuisance lockouts in cold weather or masking genuine inducer performance issues that can lead to heat exchanger damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off power and gas supply before beginning. Tools needed: flathead screwdriver, needle-nose pliers, manometer (recommended for verification), and a multimeter to confirm open\/closed status. Photograph all hose and wiring connections before removal. Hose connections must be fully seated and airtight to prevent false trips.\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 stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This listing covers both OEM pressure switch positions for the Payne \u003cstrong\u003ePA13ER06000GADAA\u003c\/strong\u003e packaged unit. Always confirm part numbers HK02ZA395 and HK02ZB028 against your unit's wiring diagram or data plate before ordering — variant builds may use different W.C. ratings. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy. \u003cstrong\u003eIn stock and ready to ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909175693683,"sku":"PAYNE-PA13ER06000GADAA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909175726451,"sku":"PAYNE-PA13ER06000GADAA-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_e382bbbd-9772-4b05-97a0-e73fa6f0122c.jpg?v=1780718617","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa13er06000gadaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}