{"product_id":"carrier-transformer-fc4dnf030010aaaa","title":"OEM Carrier Transformer Replacement Part for Fan Coil Model FC4DNF030010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement Part for Fan Coil Model FC4DNF030010AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer is the exact-fit replacement for the FC4DNF030010AAAA fan coil unit, reducing incoming line voltage to the 24V control power that operates your thermostat, relays, and control board. When a transformer burns out, the low-voltage circuit goes dead — the blower stays off and the system won't acknowledge any thermostat call. Engineered to Carrier's original specifications, this transformer supplies the correct secondary voltage and bolts in with the factory mounting holes and terminal layout of the FC4DNF030010AAAA, sparing you the splicing and adapting that generic parts demand. Installation is moderate: disconnect power, label and remove the old wiring, mount the replacement, and reconnect each lead to its matching terminal. Most DIYers with basic electrical skills finish in under an hour, but we recommend a licensed HVAC technician handle line-voltage work. Genuine Carrier parts safeguard reliability and your warranty. In stock and ready — orders before 3PM CST ship same day.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FC4DNF030010AAAA.\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":62947287171443,"sku":"carrier-transformer-fc4dnf030010aaaa","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fc4dnf030010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}