{"product_id":"carrier-transformer-fa4cnf048015aaaa","title":"OEM Carrier Transformer EF18AX075 for Model FA4CNF048015AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer EF18AX075 for Model FA4CNF048015AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer (EF18AX075) steps down line voltage to the 24V control power that runs your FA4CNF048015AAAA fan coil's thermostat, control board, and relays. When your thermostat goes blank, the control board won't power up, or your system is completely unresponsive despite having line voltage, a burned-out transformer is a frequent cause—often triggered by a control short or power surge. This genuine Carrier replacement is built to exact factory voltage and VA specifications, ensuring stable, reliable low-voltage power throughout your system. Installation is moderate in difficulty—a DIYer comfortable with electrical wiring can complete it in 20-30 minutes after disconnecting power, though a licensed HVAC technician is recommended for safety and to diagnose any underlying short. Photograph wire connections before removal. Choosing a genuine OEM transformer avoids the fit and reliability issues common with aftermarket parts. This part is in stock and ready to ship. Order before 3PM CST and it ships the same day. Backed by our quality guarantee and expert support.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4CNF048015AAAA.\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":62955200414067,"sku":"carrier-transformer-fa4cnf048015aaaa","price":44.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4cnf048015aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}