{"product_id":"carrier-transformer-fb4cnp025l05aaaa","title":"OEM Carrier Transformer Replacement for Model FB4CNP025L05AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FB4CNP025L05AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer reduces incoming line voltage to the 24V control voltage that powers the control board, thermostat, and relays in your FB4CNP025L05AAAA fan coil air handler. A failed transformer commonly causes a dead control circuit, a blank thermostat, and a unit that ignores every call for heating or cooling. Installing a genuine Carrier transformer restores the proper secondary voltage and protects the downstream electronics from running on faulty power. This part matches the FB4CNP025L05AAAA's VA rating and mounting footprint for an exact, drop-in fit. The repair is easy-to-moderate for a qualified technician: shut off power, record the primary and secondary lead colors, replace the transformer, and confirm 24V at the secondary before reconnecting. OEM keeps you clear of the rating mismatches and wiring confusion of generic substitutes. Order before 3PM CST and we ship the same day, so your air handler returns to service quickly. Every transformer ships new and ready to install with genuine Carrier reliability and fit.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4CNP025L05AAAA.\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":62950088474995,"sku":"carrier-transformer-fb4cnp025l05aaaa","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4cnp025l05aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}