{"product_id":"carrier-transformer-fa4bnf030000aaaa","title":"OEM Carrier Transformer FA4BNF030000 for Model FA4BNF030000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer FA4BNF030000 for Model FA4BNF030000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer steps incoming line voltage down to the 24V control voltage that powers the thermostat, control board, and contactor circuit in your FA4BNF030000AAAA fan coil. Symptoms of a failed transformer include no power at the thermostat, repeatedly blown low-voltage fuses, and a system that won't energize. This genuine Carrier replacement is built to the precise VA rating and primary\/secondary voltage specs of your unit, providing stable control power and protecting the downstream components that rely on it. It is a direct-fit replacement for the FA4BNF030000AAAA, mounting in the factory position with matching wire leads. Installation is moderate and best handled by a qualified HVAC technician: disconnect and lock out power, label the primary and secondary leads, mount the new transformer, and reconnect. Selecting the correct OEM part prevents voltage mismatches and nuisance trips associated with generic units. In stock and ships same-day when ordered before 3PM CST, so your fan coil's control circuit is back online quickly.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4BNF030000AAAA.\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":62956412305779,"sku":"carrier-transformer-fa4bnf030000aaaa","price":74.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4bnf030000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}