{"product_id":"carrier-transformer-fa4cnf030008aaaa","title":"OEM Carrier Transformer for Air Handler Model FA4CNF030008AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer for Air Handler Model FA4CNF030008AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer is the factory replacement for the FA4CNF030008AAAA fan coil air handler. It steps incoming line voltage down to the 24V low-voltage control circuit that powers your thermostat, control board, and relays. A failed transformer kills the entire control side of the system—no thermostat response, no blower call, no cooling—while the high-voltage components remain untouched. Wound to Carrier's exact VA and voltage specifications, this transformer supplies clean, stable control power for dependable operation. Replacement is a moderate job for a confident DIYer or technician: disconnect power, label and move the primary and secondary leads, and mount the new unit—typically 20 to 30 minutes. Verify that the primary voltage and VA rating match your original transformer before wiring. We stock this part and ship same-day on all orders placed before 3PM CST, so your FA4CNF030008AAAA control system is back in service quickly.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4CNF030008AAAA.\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":62955502993779,"sku":"carrier-transformer-fa4cnf030008aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4cnf030008aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}