{"product_id":"carrier-control-board-gb1aav036045acja","title":"OEM Carrier Control Board HK42FZ034 for Model GB1AAV036045ACJA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ034 for Model GB1AAV036045ACJA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier furnace control board (HK42FZ034) is the integrated ignition control center for your Carrier GB1AAV036045ACJA gas furnace. It manages the ignition sequence, gas valve timing, blower operation, and continuous self-diagnostics, monitoring safety circuits like the flame sensor and pressure switch on every cycle. A failed board commonly causes no-heat calls, short cycling, or a furnace that won't respond to the thermostat. Built to exact Carrier specifications, this board guarantees correct timing and reliable, safe operation that aftermarket boards can't always match. Installation is moderate: a trained HVAC technician can typically swap it in 30-45 minutes by transferring the plug connectors and DIP switch settings to the new board. Always cut power before servicing. Genuine Carrier components protect your warranty and extend furnace life. In stock and ready to go — orders placed before 3PM CST ship the same day. Restore safe, dependable heat to your home with the exact part your furnace was engineered to use. Backed by our fast, accurate fulfillment and HVAC parts expertise.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model GB1AAV036045ACJA.\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":62942826987891,"sku":"carrier-control-board-gb1aav036045acja","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-gb1aav036045acja.jpg?v=1781467726","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-gb1aav036045acja","provider":"National HVAC Parts","version":"1.0","type":"link"}