{"product_id":"payne-pa13pr06000gaaaa-pressure-switch-jria74","title":"OEM Payne Pressure Switch HK02ZA395 \/ HK02ZB028 — PA13PR06000GAAAA","description":"\u003ch1\u003eOEM Payne High \u0026amp; Low Pressure Switch HK02ZA395 \/ HK02ZB028 for Model PA13PR06000GAAAA\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch listing covers 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 PA13PR06000GAAAA\u003c\/strong\u003e packaged heat pump unit. Pressure switches are safety devices that prove the inducer motor is creating adequate draft before allowing the ignition sequence to proceed. A failed pressure switch will cause the system to lock out prior to ignition — often cycling the inducer motor repeatedly without ever reaching the heating stage. Symptoms include a flashing fault code for \"pressure switch stuck open\" or \"pressure switch stuck closed,\" no heat output, or continuous inducer operation with no ignition attempt.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part numbers HK02ZA395 (High Pressure Switch) and HK02ZB028 (Low Pressure Switch) | Factory-rated W.C. (water column) setpoints matched to the PA13PR06000GAAAA inducer assembly | SPST normally open configuration | Direct drop-in replacement with matching port and harness connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact W.C. trip points required by the factory inducer and heat exchanger design. Aftermarket switches with imprecise setpoints can cause nuisance lockouts, unsafe draft conditions, or delayed fault detection — always choose OEM for safety-critical components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Shut off power and gas before servicing. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, multimeter (continuity setting), and a manometer if verifying W.C. setpoint. Disconnect the rubber hose and two-wire harness connector; swap switch and retest with a call for heat. Always clear fault codes at the thermostat after replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both HK02ZA395 and HK02ZB028. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Both switches are factory-matched to the \u003cstrong\u003ePayne PA13PR06000GAAAA\u003c\/strong\u003e packaged heat pump. Please confirm which switch — high or low — has failed using your unit's fault code readout or continuity test before ordering. If both switches are original and the unit has high run hours, replacing the pair is a cost-effective best practice. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — reach out via chat or phone before checkout.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909062906227,"sku":"PAYNE-PA13PR06000GAAAA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909062938995,"sku":"PAYNE-PA13PR06000GAAAA-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_fc21eee2-4a1d-4dc0-a6c2-541e0e70ee26.jpg?v=1780718568","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa13pr06000gaaaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}