{"product_id":"carrier-transformer-fv4bnf003t00aaaa","title":"OEM Carrier Transformer 40VA for Model FV4BNF003T00AAAA Fan Coil","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer 40VA for Model FV4BNF003T00AAAA Fan Coil\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier control transformer is the exact replacement for the FV4BNF003T00AAAA fan coil air handler. The transformer steps line voltage down to 24V to power the control board, thermostat, and low-voltage circuits that run your blower and accessories. When your fan coil goes completely dead, blows the low-voltage fuse, or the thermostat loses power, a failed transformer is the most common cause. This factory-spec unit matches the original VA rating, primary and secondary voltages, and mounting footprint, so it drops in without rewiring or guesswork. Installation is a moderate DIY job for anyone comfortable with HVAC low-voltage wiring: kill power at the breaker, label and swap the leads, then mount and restore power. Most installs take under 30 minutes with a screwdriver and nut driver. Using a genuine Carrier transformer protects your control board and preserves system reliability versus generic substitutes. In stock and ready to ship same-day on orders placed before 3PM CST, so you can get your system back online fast.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FV4BNF003T00AAAA.\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":62942905860467,"sku":"carrier-transformer-fv4bnf003t00aaaa","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_a3c9722a-c120-4daa-bf01-6c349d20a051.jpg?v=1781473409","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fv4bnf003t00aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}