{"product_id":"payne-pa1pna036000aaba-pressure-switch-jria74","title":"OEM Payne High Pressure Switch HK02ZA395 for PA1PNA036000AABA","description":"\u003ch1\u003eOEM Payne High Pressure Switch HK02ZA395 for Model PA1PNA036000AABA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM high pressure switch (part number \u003cstrong\u003eHK02ZA395\u003c\/strong\u003e) for the \u003cstrong\u003ePayne PA1PNA036000AABA\u003c\/strong\u003e air handler or furnace system. The pressure switch is a safety device that monitors the negative pressure created by the inducer draft motor to confirm proper venting before allowing the control board to proceed with ignition. When this switch fails — or when the tubing connected to it cracks or clogs — the system will lock out before the ignition sequence begins, leaving you with no heat and often a diagnostic fault code pointing to inducer or pressure switch failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e High pressure switch | OEM part number HK02ZA395 | Factory-calibrated W.C. (water column) rating | Direct plug-in Molex connector | Designed for single-stage inducer proof circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Payne\/Carrier-family pressure switch. Generic aftermarket switches frequently carry incorrect W.C. ratings or loose tolerances that cause nuisance lockouts or, worse, fail to detect a true venting fault — a serious safety risk. OEM is strongly recommended for pressure switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power before servicing. Tools needed: flat-head screwdriver, needle-nose pliers, and a manometer if verifying W.C. rating. Inspect the rubber hose port for cracks or blockage before replacing the switch, as a clogged port is a common root cause of switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 Designed specifically for the Payne \u003cstrong\u003ePA1PNA036000AABA\u003c\/strong\u003e. Always cross-reference the OEM part number HK02ZA395 against your unit's data plate or existing switch label before ordering to confirm correct W.C. rating and connector type. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you buy — call or chat today. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908979020147,"sku":"PAYNE-PA1PNA036000AABA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908979052915,"sku":"PAYNE-PA1PNA036000AABA-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_93f2b06f-6879-4fa1-958d-3c825c10e2ff.jpg?v=1780718339","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa1pna036000aaba-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}