{"product_id":"carrier-control-board-hc1ajx024000aaaa","title":"OEM Carrier Control Board HK42FZ for Model HC1AJX024000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ for Model HC1AJX024000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control board is the central circuit board for the HC1AJX024000AAAA packaged unit, coordinating the ignition sequence, blower timing, safety lockouts, and communication between the thermostat and major components. When your unit short-cycles, fails to ignite, or the blower runs continuously, a failed control board is a common cause. Built to Carrier's exact factory specifications, this board restores reliable operation and protects downstream components from voltage faults. Installation is moderate difficulty and best handled by an HVAC technician, since it requires disconnecting power, transferring wire harnesses pin-for-pin, and verifying DIP switch settings against the original. Most techs complete the swap in 30-45 minutes. Always confirm the part number printed on your existing board before ordering. This is a genuine OEM replacement, not a universal aftermarket substitute, ensuring correct fit and full diagnostic compatibility with your HC1AJX024000AAAA. Orders placed before 3PM CST ship same-day, so you can get your system back online fast. In stock and ready to ship.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model HC1AJX024000AAAA.\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":62942646370675,"sku":"carrier-control-board-hc1ajx024000aaaa","price":199.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-hc1ajx024000aaaa.jpg?v=1781467440","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-hc1ajx024000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}