{"product_id":"carrier-py1pna036120acba-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PY1PNA036120ACBA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PY1PNA036120ACBA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch for the \u003cstrong\u003eCarrier PY1PNA036120ACBA\u003c\/strong\u003e packaged unit. The pressure switch monitors the inducer motor's draft pressure to confirm safe venting conditions before allowing the ignition sequence to proceed. When it fails or sticks open, the control board cannot verify that the inducer is operating correctly — resulting in a no-heat condition, repeated ignition lockouts, or a fault code pointing to the inducer\/pressure switch circuit. Replacing with the correct OEM part restores factory-calibrated trip points and eliminates nuisance lockouts caused by out-of-spec aftermarket substitutes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 22 PSI close | 7 PSI open | 50\" lead wire | OEM Part Number: HK02ZB038 | Also referenced as PS80-02-F0074\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM switch is factory-calibrated to the exact water column (W.C.) rating required by the \u003cstrong\u003ePY1PNA036120ACBA\u003c\/strong\u003e heat exchanger design. Generic pressure switches often carry ±15% tolerance on trip points, which can cause unsafe short-cycling or nuisance lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power to the unit at the disconnect and thermostat before beginning. Tools needed: 1\/4\" and 5\/16\" nut drivers, needle-nose pliers, and a multimeter (to confirm switch continuity before and after). Photograph all hose and wire connections before removal. Swap the rubber hose and two-wire harness connector directly to the new switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Orders placed before 3 PM ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the \u003cstrong\u003eCarrier PY1PNA036120ACBA\u003c\/strong\u003e packaged unit. Always verify the OEM part number on your existing switch or equipment data plate before ordering. Our HVAC parts team is available to confirm fitment — contact us before you buy if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640980918643,"sku":"CARRIE-PY1PNA036120ACBA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640980951411,"sku":"CARRIE-PY1PNA036120ACBA-PRESSURE_SWITCH-HK02ZB038-GEN","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZB038_001ebbc5-20d4-4eb5-8562-dd147fc0244b.jpg?v=1775037015","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pna036120acba-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}