{"product_id":"carrier-transformer-fa4anf048000agaa","title":"OEM Carrier Transformer EFS0040003 for Model FA4ANF048000AGAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer EFS0040003 for Model FA4ANF048000AGAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer (EFS0040003) supplies the critical 24V low-voltage power that drives the controls, relays, and thermostat circuit on your Carrier FA4ANF048000AGAA fan coil. When a transformer fails, the entire low-voltage system goes dead: the thermostat won't power up, contactors won't pull in, and the unit won't respond. Often a failed transformer is the result of a short elsewhere, so inspect the control circuit before replacing. This genuine Carrier transformer provides the exact primary and secondary voltage ratings and VA capacity specified for the FA4ANF048000AGAA, ensuring stable control power that generic units may not match. Installation is straightforward for a qualified HVAC technician and usually takes 20-30 minutes: disconnect power, label and transfer the primary and secondary leads, and mount the new transformer securely. Always confirm the source of the original failure to protect the new part. Restore dependable low-voltage power to your air handler with the correct OEM component. Order before 3PM CST and your genuine Carrier transformer ships the same day.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4ANF048000AGAA.\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":62957424312691,"sku":"carrier-transformer-fa4anf048000agaa","price":59.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4anf048000agaa","provider":"National HVAC Parts","version":"1.0","type":"link"}