{"product_id":"carrier-control-board-ga2aad036055aaja","title":"OEM Carrier Control Board HK42FZ034 for Model GA2AAD036055AAJA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ034 for Model GA2AAD036055AAJA\u003c\/h1\u003e\n\u003cp\u003eThe OEM Carrier control board (HK42FZ034) is the central controller of your Carrier GA2AAD036055AAJA gas furnace, governing ignition timing, blower and inducer operation, safety limits, and the full heating cycle. A failed board often shows up as no ignition, short-cycling, blinking diagnostic codes, or a furnace that ignores the thermostat. Installing a new board restores safe, automatic, code-correct operation. This factory-spec integrated furnace control is matched to the GA2AAD036055AAJA's sensor inputs and sequencing for plug-in compatibility and accurate self-diagnostics. Installation is moderate—plan 30 to 45 minutes. Power down the furnace, transfer each wiring harness one at a time to avoid mistakes, replicate any DIP-switch settings from the original, and confirm flame-sense and limit connections. Always shut off power and gas before servicing. Genuine OEM delivers the correct firmware and timing generic boards can't promise. In stock and ships same-day when ordered before 3PM CST. Order now to restore reliable heat with a trusted factory replacement board.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model GA2AAD036055AAJA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942845698419,"sku":"carrier-control-board-ga2aad036055aaja","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-ga2aad036055aaja.jpg?v=1781467713","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-ga2aad036055aaja","provider":"National HVAC Parts","version":"1.0","type":"link"}