{"product_id":"carrier-control-board-fb5anf042000aaaa","title":"OEM Carrier Control Board for Air Handler Model FB5ANF042000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Control Board for Air Handler Model FB5ANF042000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier control board is the electronic brain of your FB5ANF042000AAAA fan coil air handler, managing blower operation, heating relays, fan timing, and safety interlocks. It interprets thermostat calls and sequences the ECM blower and electric heat stages so your system delivers consistent comfort and protects itself from overheating. Symptoms of a failing board include no blower response, erratic fan behavior, blown fuses, or the unit ignoring thermostat commands. Manufactured to Carrier's exact specifications, this direct replacement matches the connectors, relay layout, and firmware logic of the original FB5ANF042000AAAA board for true plug-and-play fitment. Installation is moderate to advanced: shut off power, label and unplug each harness, transfer the board to the same standoffs, and reconnect. Most experienced DIYers and all technicians finish in 30 to 45 minutes. Using the OEM board avoids the compatibility and fault-code issues common with aftermarket boards and preserves system reliability. In stock and shipping same-day on orders placed before 3PM CST. Contact our HVAC specialists to confirm fitment by your model and serial.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB5ANF042000AAAA.\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":62949652955507,"sku":"carrier-control-board-fb5anf042000aaaa","price":149.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-control-board-fb5anf042000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}