{"product_id":"carrier-transformer-fy5bnf018000aaaa","title":"Genuine OEM Carrier Transformer for Fan Coil Model FY5BNF018000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eGenuine OEM Carrier Transformer for Fan Coil Model FY5BNF018000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer steps down incoming line voltage to the 24V control voltage required to power the thermostat, control board, and relays in your FY5BNF018000AAAA fan coil unit. When a transformer fails, the most common symptoms are a completely dead thermostat, blown low-voltage fuse, or a system that simply won't power on. Built to exact Carrier factory specifications, this transformer is a direct-fit replacement with the correct primary and secondary voltage ratings and matching terminal layout for the FY5BNF018000AAAA, eliminating guesswork during the swap. Installation is relatively straightforward for an experienced technician—disconnect power, note the wire positions, and transfer the leads—but low-voltage work should always be performed safely and to code. Choosing the genuine OEM part ensures correct VA capacity and protects downstream electronics from undervoltage damage. Orders placed before 3PM CST ship the same business day, getting your air handler back in service quickly. Shop NationalHVACParts.com for authentic Carrier parts backed by fast, reliable same-day shipping.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FY5BNF018000AAAA.\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":62942875353459,"sku":"carrier-transformer-fy5bnf018000aaaa","price":54.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-fy_9ce96806-3223-4603-81da-6f92c33c4442.jpg?v=1781463970","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fy5bnf018000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}