{"product_id":"carrier-transformer-fb4cnfs18l00acaa","title":"OEM Carrier Transformer Replacement for Model FB4CNFS18L00ACAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FB4CNFS18L00ACAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer provides the 24V low-voltage control power your FB4CNFS18L00ACAA fan coil air handler needs to run the thermostat, control board, and relay circuits. A failed transformer typically kills all control voltage, showing up as an unresponsive thermostat, a blower that won't start, or a repeatedly blown low-voltage fuse. Built to Carrier factory specifications, this replacement carries the correct primary and secondary voltage ratings for your unit, avoiding the overheating and short cycling that plague mismatched generic parts. It is designed specifically for the FB4CNFS18L00ACAA, so the mounting bracket and leads match your original. The job is beginner to moderate difficulty: cut power, label the primary and secondary leads, mount the new transformer, and reconnect. Most installs take 20 to 30 minutes. Restoring proper control voltage brings your heating and cooling system back to dependable operation. This part is in stock and ships same-day when you order before 3PM CST, so you are not left waiting on comfort.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4CNFS18L00ACAA.\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":62950186189171,"sku":"carrier-transformer-fb4cnfs18l00acaa","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4cnfs18l00acaa","provider":"National HVAC Parts","version":"1.0","type":"link"}