{"product_id":"carrier-transformer-fb4cnf030000abaa","title":"OEM Carrier Transformer 40VA 24V for Model FB4CNF030000ABAA Unit","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer 40VA 24V for Model FB4CNF030000ABAA Unit\u003c\/h1\u003e\n\u003cp\u003eThis genuine Carrier transformer supplies the 24-volt control voltage your FB4CNF030000ABAA fan coil needs to operate its thermostat, relays, and control board. Because a failed transformer typically kills all power to the system, leaving a blank thermostat and no cooling response, it is one of the most common parts to diagnose and replace. Manufactured to exact OEM Carrier specifications, this replacement matches the factory primary and secondary windings and the original mounting location, so it installs cleanly with no rewiring, splicing, or bracket changes. A qualified technician or confident DIYer can usually swap it in about 30 minutes with a screwdriver and nut driver once power is shut off at the disconnect. Installing the authentic part protects your control board and maintains Carrier reliability and warranty compliance. Check the VA rating on the original transformer before ordering. Orders placed before 3PM CST ship the same business day from our US warehouse. Covered by our exact-fit guarantee for the FB4CNF030000ABAA fan coil.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4CNF030000ABAA.\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":62950660047219,"sku":"carrier-transformer-fb4cnf030000abaa","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4cnf030000abaa","provider":"National HVAC Parts","version":"1.0","type":"link"}