{"product_id":"carrier-transformer-fb4cnf042000abaa","title":"OEM Carrier Transformer for Model FB4CNF042000ABAA Air Handler","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer for Model FB4CNF042000ABAA Air Handler\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer is the genuine replacement low-voltage power component for the FB4CNF042000ABAA fan coil air handler. The transformer steps line voltage down to the 24V control signal that powers the thermostat, contactor, and control board circuits. When your system has no 24V control power, a blank thermostat, or fails to call for heating or cooling, a failed transformer is a common cause. Built to factory specifications for the FB4CNF042000ABAA, this part ensures a precise fit and reliable performance no aftermarket equivalent can guarantee. Installation is moderate and best handled by an HVAC technician: disconnect all power, label and transfer the primary and secondary leads, and mount in the original position. Most installs take under 30 minutes. Restore safe, code-compliant 24V control power with an authentic Carrier component. In stock and ships same-day when ordered before 3PM CST, getting your air handler back online fast. Backed by genuine OEM quality for long-term durability and dependable operation.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4CNF042000ABAA.\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":62950527435123,"sku":"carrier-transformer-fb4cnf042000abaa","price":74.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4cnf042000abaa","provider":"National HVAC Parts","version":"1.0","type":"link"}