{"product_id":"carrier-ph10ja03000gaeaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PH10JA03000GAEAA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 — 22#CLS \/ 7#OPN, 50\" Leads for Model PH10JA03000GAEAA\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 PH10JA03000GAEAA\u003c\/strong\u003e. The pressure switch is a critical safety device that monitors the negative pressure (draft) created by the inducer motor. It closes at \u003cstrong\u003e22\" W.C.\u003c\/strong\u003e to confirm proper inducer operation and opens at \u003cstrong\u003e7\" W.C.\u003c\/strong\u003e as a failsafe. When this switch fails, the control board never receives the \"inducer proven\" signal, causing the furnace to lock out before ignition — resulting in a no-heat call with no spark or gas flow.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 22# Close \/ 7# Open pressure rating | 50\" lead wire | Factory-matched W.C. setpoint | OEM part number HK02ZB038 | Cross-reference: PS80-02-F0074\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch calibrated to the exact W.C. setpoint for your unit. Aftermarket switches with loose tolerances can cause intermittent lockouts or fail to trip in dangerous draft-loss conditions — always use OEM on safety-critical pressure switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Power down the unit at the disconnect and thermostat before starting. Tools needed: 1\/4\" nut driver, flathead screwdriver, needle-nose pliers. Photograph wiring before disconnecting the two leads. Swap the hose and spade connectors and verify the inducer runs before restoring full power.\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 Factory-specified replacement for the \u003cstrong\u003eCarrier PH10JA03000GAEAA\u003c\/strong\u003e. Always confirm the W.C. rating on your existing switch or unit data plate before ordering. Our HVAC parts specialists are available to verify fitment before you buy — order now and receive same-day shipping on in-stock parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642008326515,"sku":"CARRIE-PH10JA03000GAEAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642008359283,"sku":"CARRIE-PH10JA03000GAEAA-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_437817c6-2e03-4ed0-9469-b710829c4873.jpg?v=1775036855","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja03000gaeaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}