{"product_id":"carrier-09de064100-transformer-h2ut4z","title":"OEM Carrier Transformer 40VA 230\/115V for Model 09DE064100","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 230\/115V — Model 09DE064100 (HT01BC208)\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier 09DE064100\u003c\/strong\u003e, supplied under Carrier part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e. The transformer steps down line voltage to power the low-voltage control circuit that operates your thermostat, contactor coil, and safety switches. When this transformer fails, the entire control circuit goes dead — your system will not respond to any thermostat call for heating or cooling, and you may see a completely unresponsive display or blown 3A fuse on the board.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | 230V primary input | 115V secondary output | 50\/60 Hz | Totaline\/Carrier OEM — also cross-references 320659-301 and 2-05757-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer wound to factory VA and voltage tolerances. Aftermarket substitutes often run low on VA output, causing nuisance fuse trips and premature coil failures — especially under high-load summer conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Label all wires before disconnecting. Confirm input and output voltages with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier 09DE064100\u003c\/strong\u003e. Also fits select Bryant and Payne models that share the HT01BC208 specification — verify your unit's data plate voltage and VA rating before ordering. Our HVAC parts specialists are standing by to confirm fitment. \u003cstrong\u003eOrder now and we'll ship the same business day.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640127115635,"sku":"CARRIE-09DE064100-TRANSFORMER-HT01BC208","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640127148403,"sku":"CARRIE-09DE064100-TRANSFORMER-HT01BC208-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BC208_9a049c6f-5aa9-4aa8-b6f2-aed70c6c30c9.jpg?v=1782942481","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de064100-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}