{"product_id":"carrier-control-board-ha1bjx018000adaa","title":"OEM Carrier Control Board HK42FZ009 for Model HA1BJX018000ADAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board HK42FZ009 for Model HA1BJX018000ADAA\u003c\/h1\u003e\n\u003cp\u003eThe OEM Carrier HK42FZ009 control circuit board is the electronic brain of your HA1BJX018000ADAA system, managing fan timing, compressor logic, safety lockouts, and communication between the thermostat and the outdoor unit. A failed board often shows up as an unresponsive system, blinking diagnostic LEDs, or a unit that ignores cooling calls entirely. This genuine Carrier board is manufactured to factory firmware and connector specifications, ensuring every relay, terminal, and diagnostic light matches what your HA1BJX018000ADAA expects — avoiding the misfires and error codes common with generic boards. Installation is moderate in difficulty: cut power at the disconnect, label each connector, transfer the wiring harness plug-by-plug to the new board, and remount on the standoffs. Most technicians complete it in 30-45 minutes. Choosing the correct OEM board protects your warranty-grade reliability and built-in safety controls. We keep this part in stock and ship same-day on orders placed before 3PM CST, minimizing downtime during a no-cool emergency. Get your Carrier system thinking clearly again with the exact replacement board it was built around.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model HA1BJX018000ADAA.\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":62942694506867,"sku":"carrier-control-board-ha1bjx018000adaa","price":189.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-ha1bjx018000adaa.jpg?v=1781467535","url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-ha1bjx018000adaa","provider":"National HVAC Parts","version":"1.0","type":"link"}