{"product_id":"carrier-gb3aav048115aeja-pressure-switch-h43srx","title":"OEM Carrier Pressure Switch w\/ Bracket for GB3AAV048115AEJA — HK06WC09","description":"\u003ch1\u003eOEM Carrier Pressure Switch with Bracket for Model GB3AAV048115AEJA — Part# HK06WC090\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch with integrated mounting bracket for the \u003cstrong\u003eCarrier GB3AAV048115AEJA\u003c\/strong\u003e gas furnace. The pressure switch monitors negative pressure created by the inducer draft motor to confirm safe venting conditions before allowing ignition to proceed. When the switch fails, the control board cannot verify that the inducer is operating correctly, causing the furnace to lock out prior to ignition — leaving you with no heat. Common symptoms include a furnace that attempts to start but shuts down immediately, a flashing fault code indicating a pressure switch error, or a furnace that runs the inducer but never advances to the ignition stage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM-rated water column (W.C.) pressure setting factory-matched to the \u003cstrong\u003eGB3AAV048115AEJA\u003c\/strong\u003e inducer assembly | Includes factory mounting bracket for direct drop-in installation | Rated for single-stage gas furnace operation | Meets original Carrier tolerance specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches use factory-calibrated diaphragms that trip at the precise W.C. rating engineered for your furnace. Generic switches often carry wider tolerance ranges that can cause nuisance lockouts or, more dangerously, fail to detect a true venting problem — a critical safety concern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power and gas before servicing. Tools needed: 1\/4\" nut driver, flathead screwdriver, and a manometer if verifying W.C. rating post-install. Photograph the hose port and wiring connections before removal. The included bracket simplifies reinstallation to factory position.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eGB3AAV048115AEJA\u003c\/strong\u003e 4-ton, 115,000 BTU gas furnace. Always cross-reference part number \u003cstrong\u003eHK06WC090\u003c\/strong\u003e against your unit's data plate before ordering. Our fitment team is available to verify compatibility before you purchase — ensuring you get the right part the first time. Order today and receive same-day shipping on all in-stock OEM components.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909390422387,"sku":"CARRIE-GB3AAV048115AEJA-PRESSURE_SWITCH-HK06WC090","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909390455155,"sku":"CARRIE-GB3AAV048115AEJA-PRESSURE_SWITCH-HK06WC090-GEN","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-draft-inducer-HK06WC090_7158118e-05d1-400f-a978-2fd66b0be739.jpg?v=1782931540","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav048115aeja-pressure-switch-h43srx","provider":"National HVAC Parts","version":"1.0","type":"link"}