{"product_id":"carrier-transformer-fb4cnf036015acaa","title":"OEM Carrier Transformer for Model FB4CNF036015ACAA Air Handler","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer for Model FB4CNF036015ACAA Air Handler\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer is the genuine factory control component for the FB4CNF036015ACAA fan coil air handler. The transformer steps down incoming line voltage (typically 240V) to the 24V control voltage required to operate the thermostat, contactor, and low-voltage control circuit. A failed transformer is one of the most common causes of a dead control board or unresponsive thermostat, so replacing it with the correct Carrier-specified part restores reliable operation without guesswork. Built to the exact VA rating and mounting footprint of the original, it drops directly into the FB4CNF036015ACAA without rewiring or modification. Installation is moderate and well within reach of an experienced DIYer or HVAC technician: disconnect power, label and transfer the primary and secondary leads, mount, and reconnect. Always confirm voltage with a meter before energizing. Using a genuine OEM transformer protects your control board and preserves Carrier system warranties. In stock and ships same-day when ordered before 3PM CST, so you can get your air handler back online fast.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4CNF036015ACAA.\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":62950594773363,"sku":"carrier-transformer-fb4cnf036015acaa","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4cnf036015acaa","provider":"National HVAC Parts","version":"1.0","type":"link"}