{"product_id":"carrier-transformer-fb4cnf048t15acaa","title":"OEM Carrier Transformer Replacement for Model FB4CNF048T15ACAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FB4CNF048T15ACAA\u003c\/h1\u003e\n\u003cp\u003eKeep your Carrier FB4CNF048T15ACAA fan coil air handler running with this genuine OEM control transformer. The transformer converts incoming line voltage into the 24V power that operates the thermostat, control board, contactor, and relay circuit on this unit. Signs of a failed transformer include a blank thermostat, no heating or cooling response when called, or a low-voltage fuse that blows repeatedly. Produced to Carrier's original VA rating and wiring configuration, this replacement matches the FB4CNF048T15ACAA connections for a direct fit with no rewiring required. Installation is a moderate job that a trained technician can finish in roughly 20-30 minutes: disconnect power, transfer the labeled primary and secondary leads, and mount the new transformer. Always verify the air handler is fully de-energized before service. Installing the correct OEM transformer protects the control board and preserves Carrier's intended performance and safety margins. This part is in stock and ready to ship — orders placed before 3PM CST leave our warehouse the same business day.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4CNF048T15ACAA.\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":62950278627699,"sku":"carrier-transformer-fb4cnf048t15acaa","price":37.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4cnf048t15acaa","provider":"National HVAC Parts","version":"1.0","type":"link"}