{"product_id":"carrier-ga2aad036070aaja-pressure-switch-h43sp5","title":"OEM Carrier Pressure Switch w\/Bracket for GA2AAD036070AAJA","description":"\u003ch1\u003eOEM Carrier Pressure Switch for Model GA2AAD036070AAJA (HK06WC085 \/ HK06WC097)\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch for the \u003cstrong\u003eCarrier GA2AAD036070AAJA\u003c\/strong\u003e packaged gas\/electric unit. The pressure switch monitors negative air pressure created by the draft inducer motor to confirm adequate venting before allowing ignition to proceed. When this switch fails or sticks open, the furnace control board cannot verify safe flue conditions and will lock out before the igniter ever fires — leaving you with no heat. Common symptoms include the inducer motor running but the igniter never glowing, a pressure switch fault code on the control board, or repeated ignition lockout with no other apparent cause.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Replaces OEM part numbers \u003cstrong\u003eHK06WC085\u003c\/strong\u003e (standard) and \u003cstrong\u003eHK06WC097\u003c\/strong\u003e (with mounting bracket) | Factory-matched W.C. (water column) rating | Single-port pressure switch | 24V control circuit compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to the exact water-column rating specified for this unit. Aftermarket substitutes frequently carry wider actuation tolerances, risking nuisance trips or — more dangerously — failure to detect a true venting fault. Always use OEM for safety-critical components like pressure switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off gas and power before servicing. Tools needed: 1\/4\" nut driver, flat-head screwdriver, manometer (to verify W.C. rating), and multimeter to confirm continuity across switch terminals. Inspect rubber hose for cracks before reusing. Photograph all hose and wiring connections before removal.\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 Designed specifically for the \u003cstrong\u003eCarrier GA2AAD036070AAJA\u003c\/strong\u003e packaged gas\/electric unit. Two OEM part numbers cover this application: \u003cstrong\u003eHK06WC085\u003c\/strong\u003e is the standard pressure switch, while \u003cstrong\u003eHK06WC097\u003c\/strong\u003e includes the factory mounting bracket — select the option that matches your existing configuration. Verify your unit's data plate and existing switch part number before ordering. Not sure which variant you need? Our HVAC parts specialists confirm fitment before your order ships.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909444227443,"sku":"CARRIE-GA2AAD036070AAJA-PRESSURE_SWITCH-HK06WC085","price":27.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909444260211,"sku":"CARRIE-GA2AAD036070AAJA-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_be2e4476-0109-48e3-9068-f87e44e5764f.jpg?v=1782931603","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ga2aad036070aaja-pressure-switch-h43sp5","provider":"National HVAC Parts","version":"1.0","type":"link"}