{"product_id":"payne-pa10ea06000macaa-pressure-switch-jria74","title":"OEM Payne Pressure Switch HK02ZA395 \/ HK02ZB028 — PA10EA06000MACAA","description":"\u003ch1\u003eOEM Payne High \u0026amp; Low Pressure Switch HK02ZA395 \/ HK02ZB028 for Model PA10EA06000MACAA\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch is the factory-specified replacement for the \u003cstrong\u003ePayne PA10EA06000MACAA\u003c\/strong\u003e packaged air conditioner\/heat system. The pressure switch monitors the inducer motor's draft pressure via a rubber hose connection to the collector box or flue. When the inducer reaches the correct negative pressure, the switch closes and signals the control board to proceed with the ignition sequence. A failed or stuck-open pressure switch causes the system to lock out before ignition — the inducer runs but the furnace or heat section never fires. Two OEM part numbers cover this unit: \u003cstrong\u003eHK02ZA395 (High Pressure Switch)\u003c\/strong\u003e and \u003cstrong\u003eHK02ZB028 (Low Pressure Switch)\u003c\/strong\u003e. Verify which switch has failed before ordering — a multimeter set to continuity mode across the switch terminals will confirm an open circuit at runtime.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e High Pressure Switch — OEM Part HK02ZA395 | Low Pressure Switch — OEM Part HK02ZB028 | Factory water-column (W.C.) rating matched to PA10EA06000MACAA inducer assembly | Single-port hose barb connection | 24V control circuit compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to the exact W.C. rating required by your unit's inducer. Generic substitutes often carry wider tolerance ranges, risking nuisance lockouts or — more dangerously — failure to detect true draft loss, which can allow combustion gases to escape the heat exchanger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power and gas before beginning. Tools needed: 1\/4\" nut driver, flathead screwdriver, needle-nose pliers, and a multimeter. Disconnect the rubber pressure hose and two wire leads, then swap the switch and reconnect. Always inspect the hose for cracks or blockages before reinstalling — a clogged hose is the most common cause of pressure switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both HK02ZA395 and HK02ZB028. Orders ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003ePayne PA10EA06000MACAA\u003c\/strong\u003e packaged unit. Cross-references with Carrier and Bryant models sharing the same platform — verify your unit's data plate and existing switch W.C. rating before ordering. Not sure which switch you need? Our HVAC parts specialists will confirm fitment before your order ships. \u003cstrong\u003eIn stock — order today for same-day shipping.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909250404723,"sku":"PAYNE-PA10EA06000MACAA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909250437491,"sku":"PAYNE-PA10EA06000MACAA-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_d1d279bf-e56e-4b6c-b1f7-c452095ce1da.jpg?v=1780718522","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa10ea06000macaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}