{"product_id":"carrier-transformer-fb4bnf024005aaaa","title":"OEM Carrier Transformer Replacement for Model FB4BNF024005AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer Replacement for Model FB4BNF024005AAAA\u003c\/h1\u003e\n\u003cp\u003eRestore reliable control power to your Carrier FB4BNF024005AAAA fan coil with this genuine OEM transformer. The transformer steps down incoming line voltage to the low-voltage 24V control signal that powers the thermostat, control board, and relays. When it fails, you'll see a blank thermostat, a dead control board, or a system that won't respond to a call for heating or cooling. This factory-matched transformer delivers the correct primary and secondary voltages and amperage for the FB4BNF024005AAAA, ensuring stable operation and protecting downstream control components. It mounts to the original location and connects using the existing leads, making it a straightforward replacement. Installation is moderate difficulty — best for an experienced DIYer or HVAC technician, since it involves line-voltage wiring; always cut power at the breaker first and verify lead polarity. With the correct OEM transformer in place, your control circuit gets clean, dependable 24V power. In stock and ships same-day on orders placed before 3PM CST so you can complete the repair without delay.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FB4BNF024005AAAA.\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":62951666319731,"sku":"carrier-transformer-fb4bnf024005aaaa","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fb4bnf024005aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}