{"product_id":"carrier-transformer-fb4anf030010afaa","title":"OEM Carrier Transformer Replacement for Model FB4ANF030010AFAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FB4ANF030010AFAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer steps line voltage down to the low-voltage control power your air handler needs to operate the control board, relays, and thermostat circuit in the FB4ANF030010AFAA. A failed transformer is a frequent cause of a completely dead control system—no thermostat response, no blower, and a tripped or blown low-voltage fuse. Built to Carrier's exact primary and secondary voltage and VA rating for this unit, it mounts and wires up just like the original, with matching leads and terminals for a straightforward replacement. The repair is moderate: disconnect power, label the primary and secondary wires, swap the transformer on its bracket, and reconnect—about 20 minutes for a technician. Using a correct OEM transformer ensures proper control voltage, protects the board, and restores reliable system startup. As a genuine part it meets factory specifications for safe, long-term performance. We stock this transformer and ship same-day on orders placed before 3PM CST. Get your system powered up again today at NationalHVACParts.com.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4ANF030010AFAA.\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":62953757278579,"sku":"carrier-transformer-fb4anf030010afaa","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4anf030010afaa","provider":"National HVAC Parts","version":"1.0","type":"link"}