{"product_id":"carrier-transformer-fc4cnf038000aaaa","title":"OEM Carrier Transformer Replacement for Model FC4CNF038000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FC4CNF038000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer is the factory replacement for the FC4CNF038000AAAA fan coil unit. The transformer converts incoming line voltage down to the low-voltage control circuit (typically 24V) that powers your thermostat, control board, and relays. When it fails, the whole control side goes dark: no thermostat display, no blower response, and no operation even with high-voltage power present at the unit. This OEM transformer is rated to the exact primary and secondary voltages and VA capacity Carrier specified for the FC4CNF038000AAAA, delivering stable control power and protecting downstream components from undervoltage stress. Installation is a moderate job for those comfortable with low-voltage wiring: cut power, label and transfer the primary and secondary leads, and secure the new transformer to the existing bracket. Most techs wrap up in 20 to 30 minutes. Always verify power is off at the breaker before handling any wiring. Place your order before 3PM CST and the transformer ships same-day to keep system downtime to a minimum.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FC4CNF038000AAAA.\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":62947545153907,"sku":"carrier-transformer-fc4cnf038000aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fc4cnf038000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}