{"product_id":"carrier-ga1aad036085aaja-pressure-switch-h43sp5","title":"OEM Carrier Pressure Switch for GA1AAD036085AAJA — HK06WC085","description":"\u003ch1\u003eOEM Carrier Pressure Switch for Model GA1AAD036085AAJA (HK06WC085 \/ HK06WC097)\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM pressure switch replacement for the \u003cstrong\u003eCarrier GA1AAD036085AAJA\u003c\/strong\u003e gas furnace. The pressure switch is a safety device that monitors the inducer motor's negative pressure (draft) to confirm proper venting before allowing the ignition sequence to proceed. When this switch fails, the furnace control board cannot verify safe combustion airflow, resulting in a locked-out system that will not advance past the inducer stage — leaving you with no heat. Common symptoms include the inducer running continuously with no ignition, a flashing fault code indicating pressure switch failure, or the furnace cycling on and off repeatedly without lighting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Rated to factory W.C. (water column) specification for GA1AAD036085AAJA | Single-port pressure switch | 24V control circuit compatible | Available as \u003cstrong\u003eHK06WC085\u003c\/strong\u003e (switch only) or \u003cstrong\u003eHK06WC097\u003c\/strong\u003e (switch with mounting bracket — recommended for direct swap)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are calibrated to the exact W.C. rating required by this furnace model. Generic substitutes often use broader tolerances that can cause nuisance lockouts or, worse, allow operation under unsafe draft conditions. Always use OEM for pressure switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Requires disconnecting the rubber hose from the inducer housing and swapping the wiring harness connector. Tools needed: flathead screwdriver, needle-nose pliers, and a manometer if verifying W.C. post-install. Always shut off power and gas before beginning. If replacing with HK06WC097, use the included bracket to secure the switch to the blower deck.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed by 3 PM ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eGA1AAD036085AAJA\u003c\/strong\u003e gas furnace. Order \u003cstrong\u003eHK06WC085\u003c\/strong\u003e if your existing switch is mounted and bracket is intact; order \u003cstrong\u003eHK06WC097\u003c\/strong\u003e if the bracket is damaged or missing. Verify your existing part number on the switch body label before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909453336947,"sku":"CARRIE-GA1AAD036085AAJA-PRESSURE_SWITCH-HK06WC085","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909453369715,"sku":"CARRIE-GA1AAD036085AAJA-PRESSURE_SWITCH-HK06WC085-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-HK06WC085_de4de291-ad19-45c6-802c-85c8cfa26c2f.jpg?v=1782929808","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ga1aad036085aaja-pressure-switch-h43sp5","provider":"National HVAC Parts","version":"1.0","type":"link"}