{"product_id":"carrier-transformer-fv4cnb003t00aaaa","title":"OEM Carrier 24V Transformer for Fan Coil Model FV4CNB003T00AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier 24V Transformer for Fan Coil Model FV4CNB003T00AAAA\u003c\/h1\u003e\n\u003cp\u003eThis authentic OEM Carrier transformer steps line voltage down to the 24V control power that operates the thermostat, contactor, and control board on your FV4CNB003T00AAAA fan coil. A failing transformer commonly causes a dead thermostat or a system that won't start a heating or cooling cycle — and the correct factory part restores low-voltage control without guesswork. Built specifically for the FV4CNB003T00AAAA, this transformer provides the matching VA rating, mounting footprint, and lead arrangement for a clean drop-in fit. Installation is moderate: kill power at the disconnect, label the primary and secondary leads, mount the replacement, re-land the wiring, and test. Always verify the part against your unit's nameplate before installing. Genuine OEM construction delivers consistent quality and a longer service life than aftermarket alternatives, cutting down on repeat failures. We stock this transformer and ship same-day on orders placed before 3PM CST, so your HVAC equipment spends less time down and more time keeping the space comfortable.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FV4CNB003T00AAAA.\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":62942903828851,"sku":"carrier-transformer-fv4cnb003t00aaaa","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-fv_41d91a08-a1e6-4f64-ae16-dcf631c5169a.jpg?v=1781464001","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fv4cnb003t00aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}