{"product_id":"carrier-transformer-fx4cnf024t00aaaa","title":"OEM Carrier Transformer Replacement for Model FX4CNF024T00AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FX4CNF024T00AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer supplies the low-voltage 24V control power that the FX4CNF024T00AAAA fan coil air handler needs to operate its control board, blower relays, and thermostat circuit. It steps line voltage down to the 24VAC required by the unit's controls, and when it fails you typically lose all thermostat response, a blank thermostat, or repeated blown fuses. This genuine Carrier transformer is built to the exact VA rating and mounting footprint of the FX4CNF024T00AAAA, ensuring a clean drop-in fit with no rewiring of the secondary circuit. Installation is relatively straightforward for a qualified technician: cut power at the breaker, confirm zero voltage, label and transfer the primary and secondary leads, then mount and reconnect. Always check for a shorted control wire before energizing a new transformer to avoid a repeat failure. Choosing an OEM Carrier part guarantees correct voltage output and long service life. In stock now and ships same-day on orders placed before 3PM CST.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FX4CNF024T00AAAA.\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":62942892458355,"sku":"carrier-transformer-fx4cnf024t00aaaa","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-fx_4d30240f-99a5-48e2-9ef6-e73fbf1706a0.jpg?v=1781474200","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fx4cnf024t00aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}