{"product_id":"carrier-control-board-gb1aav042075aaja","title":"OEM Carrier Control Board HK42FZ011 for Model GB1AAV042075AAJA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ011 for Model GB1AAV042075AAJA\u003c\/h1\u003e\n\u003cp\u003eThe genuine OEM Carrier furnace control board (HK42FZ011) is the brain of your heating system, managing the ignition sequence, blower timing, safety lockouts, and communication between the thermostat, gas valve, igniter, and limit switches. A faulty board causes no-heat conditions, erratic cycling, blower problems, or flashing diagnostic LED fault codes. This factory-fit replacement is programmed and wired to the exact specifications of the Carrier GB1AAV042075AAJA, ensuring proper relay logic and timing right out of the box. Installation is a moderate job: photograph the wiring, cut power, transfer each connector to the matching terminal on the new board, and mount it in the original tray. Verify the diagnostic LED shows a normal heartbeat after restoring power. Using the correct OEM board avoids the compatibility and timing issues common with universal kits. Restore safe, reliable furnace operation with the part engineered for your unit. In stock and ships same-day on orders before 3PM CST.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model GB1AAV042075AAJA.\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":62942797496691,"sku":"carrier-control-board-gb1aav042075aaja","price":162.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-gb1aav042075aaja.jpg?v=1781467603","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-gb1aav042075aaja","provider":"National HVAC Parts","version":"1.0","type":"link"}