{"product_id":"carrier-transformer-fx4dnf049t10aaaa","title":"OEM Carrier Transformer Replacement for Model FX4DNF049T10AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FX4DNF049T10AAAA\u003c\/h1\u003e\n\u003cp\u003eKeep your Carrier FX4DNF049T10AAAA fan coil powered correctly with this genuine OEM transformer. The transformer reduces line voltage to the 24V control voltage that runs your thermostat, contactor coils, and control board. Telltale signs of a failing transformer include a blank thermostat, low-voltage fuses that blow repeatedly, or intermittent, unreliable system operation. This factory-spec replacement matches the original primary and secondary voltages and VA rating exactly, ensuring properly regulated control power and smooth equipment function. Choosing the correct OEM part avoids the capacity and connector mismatches typical of universal aftermarket transformers. Installation is moderate difficulty and best done by a qualified HVAC technician: disconnect power, clearly label the primary and secondary leads, mount the new transformer, and transfer connections individually. Always verify the voltage and VA rating on your existing transformer before ordering to guarantee a proper fit. Orders placed before 3PM CST ship the same business day, reducing your downtime. Rely on authentic Carrier components for safe, durable, and dependable long-term performance.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FX4DNF049T10AAAA.\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":62942883578227,"sku":"carrier-transformer-fx4dnf049t10aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-carrier-transformer-fx_1e0b8955-c464-4ed9-8528-e51a7cf11699.jpg?v=1781474205","url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fx4dnf049t10aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}