{"product_id":"carrier-ph10pa04800gacaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PH10PA04800GACAA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PH10PA04800GACAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH10PA04800GACAA\u003c\/strong\u003e packaged heat pump unit. The pressure switch monitors inducer motor operation by proving that the draft inducer has established adequate airflow and negative pressure before allowing the ignition sequence to proceed. When this switch fails, the control board never receives the \"safe to ignite\" signal, resulting in a hard lockout — the system will attempt to start, fail, and shut down without producing heat. A failed pressure switch is one of the most common causes of a no-heat call in packaged and split HVAC systems.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closes at 22\" W.C. | Opens at 7\" W.C. | 50\" lead wire | Single-port design | Factory-calibrated setpoints — no field adjustment required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier OEM part, manufactured to exact factory pressure setpoints (±0.1\" W.C. tolerance). Aftermarket switches frequently carry wider tolerances, leading to nuisance lockouts or — worse — unsafe operation if the switch fails to open on a blocked flue condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power down the unit and disconnect control power before servicing. Tools needed: #2 Phillips screwdriver, 1\/4\" nut driver, needle-nose pliers, manometer (recommended for verification). Inspect the rubber tubing and hose barb for cracks or moisture before reinstalling. Photograph existing wiring before disconnecting.\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 when ordered by 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier model PH10PA04800GACAA\u003c\/strong\u003e. Always verify the pressure rating on your existing switch label before ordering — multiple pressure switch ratings are used across the Carrier PH10PA packaged unit family. Our team is available to confirm fitment prior to purchase. Order today and enjoy fast, same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641979785587,"sku":"CARRIE-PH10PA04800GACAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641979818355,"sku":"CARRIE-PH10PA04800GACAA-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_b1b587bd-8309-4caa-a444-c5e66595df5c.jpg?v=1775036898","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10pa04800gacaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}