{"product_id":"carrier-transformer-fa4cnc018010aaaa","title":"OEM Carrier Transformer HT01BD238 for Model FA4CNC018010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BD238 for Model FA4CNC018010AAAA\u003c\/h1\u003e\n\u003cp\u003ePower your Carrier FA4CNC018010AAAA fan coil's control circuit with this genuine OEM transformer (HT01BD238). The transformer reduces incoming line voltage to the 24V control voltage that operates the thermostat, contactor, and control board. A failed transformer is a leading cause of a totally dead air handler — no thermostat display, no blower, and no response to calls for cooling or heat — making it a prime suspect during any no-power troubleshooting. Manufactured to Carrier's exact VA and voltage ratings, it delivers stable secondary output and protects sensitive electronics from the voltage irregularities that cheap aftermarket parts can cause. Installation is a moderate job for an HVAC professional: disconnect power, label the primary and secondary leads, mount the replacement, and reconnect. The OEM transformer guarantees an exact fit and rating for the FA4CNC platform. Place your order before 3PM CST and it ships the same business day, getting your system back online fast. Genuine Carrier reliability paired with same-day shipping makes this the confident choice.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4CNC018010AAAA.\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":62955943100787,"sku":"carrier-transformer-fa4cnc018010aaaa","price":39.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4cnc018010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}