{"product_id":"carrier-gb3aav036095adja-pressure-switch-h43srx","title":"OEM Carrier Pressure Switch w\/ Bracket for GB3AAV036095ADJA","description":"\u003ch1\u003eOEM Carrier Pressure Switch with Bracket for Model GB3AAV036095ADJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM pressure switch with mounting bracket (part number \u003cstrong\u003eHK06WC090\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier GB3AAV036095ADJA\u003c\/strong\u003e gas furnace. The pressure switch is a critical safety device that monitors negative pressure created by the inducer draft motor to confirm proper venting before allowing the ignition sequence to proceed. When this switch fails — whether it sticks open, sticks closed, or develops a cracked diaphragm — the furnace will lock out prior to ignition, leaving you with no heat. Common symptoms include a blinking fault code for \"pressure switch open\" or repeated failed ignition attempts with the inducer running normally.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number HK06WC090 | Includes factory mounting bracket | Rated water column (W.C.) pressure matched to Carrier GB3AAV036095ADJA specifications | SPST normally-open configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM pressure switch, ensuring the exact W.C. trip point calibrated for your furnace's inducer and venting configuration. Aftermarket pressure switches frequently carry incorrect trip-point ratings, causing nuisance lockouts or, worse, allowing ignition under unsafe draft conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power and gas before beginning. Tools needed: 1\/4\" nut driver, flathead screwdriver, and a manometer (recommended to verify W.C. reading post-install). Disconnect the hose and two wires, swap the bracket-mounted switch, and reconnect. Always check for cracked inducer hoses before condemning the switch.\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 climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eGB3AAV036095ADJA\u003c\/strong\u003e gas furnace. Always cross-reference the W.C. rating stamped on your existing switch and confirm part number HK06WC090 against your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your heat back today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909395370355,"sku":"CARRIE-GB3AAV036095ADJA-PRESSURE_SWITCH-HK06WC090","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909395403123,"sku":"CARRIE-GB3AAV036095ADJA-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_9483406f-0a32-4982-850a-fe3292b1e523.jpg?v=1782931533","url":"https:\/\/nationalhvacparts.com\/products\/carrier-gb3aav036095adja-pressure-switch-h43srx","provider":"National HVAC Parts","version":"1.0","type":"link"}