{"product_id":"carrier-transformer-fa4anf036000afaa","title":"OEM Carrier Transformer HT01BD253 for Model FA4ANF036000AFAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BD253 for Model FA4ANF036000AFAA\u003c\/h1\u003e\n\u003cp\u003eThis OEM Carrier transformer (part HT01BD253) is the genuine step-down transformer that supplies low-voltage control power to the FA4ANF036000AFAA fan coil. It converts incoming line voltage to the 24V required by the thermostat, control board, and relays. When the transformer fails, the control side goes completely dead: no thermostat display, no blower, and no response to a call for cooling or heating. A blown transformer often points to a shorted control wire or failed component, so check the circuit before installing the replacement. Using the factory Carrier transformer guarantees the VA rating and primary\/secondary voltages match the FA4ANF036000AFAA exactly, preventing overload and repeat failures. Replacement is a moderate task for a qualified technician: disconnect power, label the primary and secondary leads, mount the new transformer, and reconnect the wiring. Most installs take 20-40 minutes. Orders placed before 3PM CST ship same-day so you can restore control power quickly. Trust genuine Carrier components to bring the system back online. Backed by OEM quality and rapid shipping.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FA4ANF036000AFAA.\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":62958439399795,"sku":"carrier-transformer-fa4anf036000afaa","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fa4anf036000afaa","provider":"National HVAC Parts","version":"1.0","type":"link"}