{"product_id":"carrier-gb3aav048115adja-pressure-switch-h43srx","title":"OEM Carrier Pressure Switch w\/ Bracket for GB3AAV048115ADJA — HK06WC09","description":"\u003ch1\u003eOEM Carrier Pressure Switch with Bracket for Model GB3AAV048115ADJA — Part# HK06WC090\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch with mounting bracket for the \u003cstrong\u003eCarrier GB3AAV048115ADJA\u003c\/strong\u003e gas furnace. The pressure switch monitors negative pressure created by the inducer draft motor to verify safe venting conditions before allowing ignition to proceed. When it fails or sticks open, the control board cannot confirm inducer operation and the furnace will lock out — typically displaying a fault code — before the ignition sequence ever begins. Common symptoms include a running inducer with no spark, repeated ignition lockouts, or a flashing LED fault code indicating a pressure switch fault.\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 GB3AAV048115ADJA | Includes pre-assembled mounting bracket | 1\/4\" female spade terminals | Single-port design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM switch is calibrated to the exact W.C. threshold required by Carrier for this model. Aftermarket pressure switches often carry wider tolerance ratings that can cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions — always use OEM on furnace safety controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off gas and 120V power before beginning. Tools needed: 1\/4\" nut driver, flathead screwdriver, and needle-nose pliers. Disconnect the rubber hose and two wire leads, unscrew the bracket, and reverse steps to install. Confirm hose is free of cracks or blockages before reinstalling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eGB3AAV048115ADJA\u003c\/strong\u003e gas furnace. Always cross-reference part number \u003cstrong\u003eHK06WC090\u003c\/strong\u003e against your unit's data plate and wiring diagram to confirm fitment. If you have questions about compatibility, our HVAC parts specialists are available to verify fit before you order — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909390979443,"sku":"CARRIE-GB3AAV048115ADJA-PRESSURE_SWITCH-HK06WC090","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909391012211,"sku":"CARRIE-GB3AAV048115ADJA-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_d5bce872-6035-490c-9035-b750d5c836fe.jpg?v=1782931538","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav048115adja-pressure-switch-h43srx","provider":"National HVAC Parts","version":"1.0","type":"link"}