{"product_id":"carrier-transformer-fb4bnl048l00aaaa","title":"OEM Carrier Transformer HT01BD223 for FB4BNL048L00AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BD223 for FB4BNL048L00AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer supplies the critical 24-volt control voltage that powers the thermostat, control board, and contactor in your Carrier FB4BNL048L00AAAA fan coil unit. Line voltage entering the unit is too high for the control circuit, and this transformer steps it down safely and precisely. A burned-out transformer typically leaves you with a blank thermostat and a system that won't respond, making this an essential repair part. Engineered to the exact primary and secondary voltage ratings of the FB4BNL048L00AAAA, it mounts directly in place of the original for a clean, accurate fit. Installation is moderate and recommended for a qualified HVAC technician: disconnect power, label and remove the primary and secondary leads, install the new transformer, and reconnect. The job usually takes under 30 minutes. Genuine OEM components protect your warranty and deliver the longevity that cheap universal substitutes can't match. In stock and ships same-day on orders placed before 3PM CST, getting your air handler back to work quickly. Shop with confidence at NationalHVACParts.com.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4BNL048L00AAAA.\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":62951126925683,"sku":"carrier-transformer-fb4bnl048l00aaaa","price":74.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4bnl048l00aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}