{"product_id":"carrier-09de044c100-transformer-h2ut4z","title":"OEM Carrier Transformer 40VA 230\/115V for Model 09DE044C100","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 230V\/115V — HT01BC208 for Model 09DE044C100\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier replacement transformer (part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier 09DE044C100\u003c\/strong\u003e. The transformer steps voltage down from the line-voltage primary to the secondary output voltage required to power the low-voltage control circuit. When this part fails, the entire control circuit goes dead — the thermostat loses power, the system won't respond to any call for heating or cooling, and in some cases a burned smell near the air handler or furnace is the first sign of trouble. If your system is completely unresponsive and your thermostat display is blank, a failed transformer is one of the first components to check.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | 230V primary voltage | 115V secondary voltage | 50\/60 Hz | OEM part number HT01BC208 | Cross-references: 320659-301, 2-05757-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier (Totaline) transformer built to exact factory VA rating and voltage tolerances. Generic transformers often run undersized VA ratings, causing premature thermal cutout trips and control board brownouts under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 0V before touching terminals), and wire nuts or spade connectors. Photograph all wiring connections before removing the old unit. Verify output voltage with a multimeter after installation before restoring full system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed by 3PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier model 09DE044C100\u003c\/strong\u003e. Always verify primary and secondary voltage ratings against your unit's data plate before ordering. Cross-reference numbers 320659-301 and 2-05757-1 can also be used to confirm fitment. Have questions about compatibility? Our HVAC parts team verifies fitment before you order — contact us and we'll confirm the right part for your unit.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640132260211,"sku":"CARRIE-09DE044C100-TRANSFORMER-HT01BC208","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640132292979,"sku":"CARRIE-09DE044C100-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_577c76b5-2898-4d32-9e4b-36613495ecec.jpg?v=1782942471","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de044c100-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}