{"product_id":"carrier-transformer-fa4cnc024010aaaa","title":"OEM Carrier Transformer HT01BD238 for Model FA4CNC024010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BD238 for Model FA4CNC024010AAAA\u003c\/h1\u003e\n\u003cp\u003eRestore reliable 24V control power to your Carrier FA4CNC024010AAAA fan coil with this genuine OEM transformer (HT01BD238). The transformer converts incoming line voltage into the low-voltage power that drives the thermostat, contactor, and control board. When it fails, the entire system goes dead — no display, no blower, no response — making this a frequent first part to check during a no-power diagnosis. Manufactured to Carrier's precise VA and voltage specifications, it delivers stable secondary output and shields sensitive control components from electrical irregularities that off-spec aftermarket parts can introduce. Installation is moderate and best left to an HVAC professional: shut off power, label the primary and secondary leads, mount the replacement, and reconnect. Selecting the OEM transformer ensures an exact fit and the correct rating for the FA4CNC series. Any order placed before 3PM CST ships the same business day, so your air handler is back in service quickly. Genuine Carrier reliability and same-day shipping make this the smart replacement choice.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4CNC024010AAAA.\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":62955902173555,"sku":"carrier-transformer-fa4cnc024010aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4cnc024010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}