{"product_id":"carrier-transformer-fa4bnf048010aaaa","title":"OEM Carrier Transformer Part for Air Handler Model FA4BNF048010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Part for Air Handler Model FA4BNF048010AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer converts incoming line voltage to the 24V control voltage that powers the thermostat, control board, relays, and safety circuits in your FA4BNF048010AAAA air handler. A blown transformer leaves the system completely unresponsive — no thermostat display, no blower, no cooling — even with high-voltage power still present. A genuine Carrier replacement restores stable 24V output and shields sensitive low-voltage components from voltage spikes and brownouts. This factory-spec part matches the exact mounting pattern, primary\/secondary taps, and VA rating of your unit, so it drops in without modification. Installation is moderate and best left to an HVAC technician: disconnect power, label and transfer the primary and secondary leads, and remount securely. Most techs finish in 20–30 minutes. When a transformer fails repeatedly, also check for a shorted load that may be overloading it. Genuine OEM ensures correct fit and full performance. Ships same-day when ordered before 3PM CST to keep your repair moving.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4BNF048010AAAA.\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":62956140724595,"sku":"carrier-transformer-fa4bnf048010aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4bnf048010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}