{"product_id":"carrier-transformer-fb4anf018005afaa","title":"OEM Carrier Transformer for Model FB4ANF018005AFAA Air Handler","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer for Model FB4ANF018005AFAA Air Handler\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer steps down line voltage to the low-voltage 24V control circuit that powers your FB4ANF018005AFAA fan coil air handler's thermostat, control board, and relays. When your thermostat goes dark or the system won't energize despite having power at the unit, a burned-out transformer is a frequent cause. This genuine Carrier replacement delivers the exact voltage and VA rating your air handler requires, protecting downstream electronics from undervoltage stress. Designed specifically for the FB4ANF018005AFAA, it mounts in the original location with matching terminals for a clean, direct installation. Difficulty is moderate: a confident DIYer who can disconnect power and transfer the primary and secondary leads can complete this in roughly 30–45 minutes, though hiring a licensed HVAC technician is advised for safety and warranty. A proper OEM transformer ensures stable control power and prevents nuisance faults. This part is in stock and ships same-day on orders placed before 3PM CST. Choose genuine Carrier for dependable, code-compliant performance.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4ANF018005AFAA.\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":62954159374707,"sku":"carrier-transformer-fb4anf018005afaa","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4anf018005afaa","provider":"National HVAC Parts","version":"1.0","type":"link"}