{"product_id":"carrier-ph10ja036000acaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS\/7#OPN 50\" — PH10JA036000ACAA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 (22#CLS \/ 7#OPN, 50\" Leads) for Model PH10JA036000ACAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH10JA036000ACAA\u003c\/strong\u003e packaged unit. The pressure switch proves inducer motor operation by monitoring negative air pressure inside the heat exchanger flue. When the inducer builds sufficient draft, the switch closes and signals the control board to proceed with ignition. A failed pressure switch prevents the system from ever reaching ignition — the inducer will run continuously, the board will lock out after several attempts, and no heat will be delivered.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closing pressure: 22\" W.C. | Opening pressure: 7\" W.C. | Lead length: 50\" | OEM Part Number: HK02ZB038 | Factory-matched calibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are factory-calibrated to exact W.C. ratings. Off-brand switches often carry ±15% tolerance, causing nuisance lockouts or — worse — failing to detect a cracked heat exchanger, which is a serious safety risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power down and lock out the unit before servicing. Tools needed: 1\/4\" nut driver, needle-nose pliers, manometer (recommended for verification). Photograph all hose and wire connections before removal. Inspect the rubber sensing hose for cracks or blockage while the switch is out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH10JA036000ACAA\u003c\/strong\u003e packaged unit. Always verify the closing and opening pressure ratings on your unit's wiring diagram or existing switch label before installing. In stock and ready to ship — order by 3 PM local time for same-day dispatch.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642004033907,"sku":"CARRIE-PH10JA036000ACAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642004066675,"sku":"CARRIE-PH10JA036000ACAA-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_19ab87cc-1ff1-4221-bc63-d226a9293e3e.jpg?v=1775037078","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja036000acaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}