{"product_id":"carrier-09de044100-transformer-h2ut4z","title":"OEM Carrier Control Transformer 40VA 230V for 09DE044100","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 230V — HT01BC208 for Model 09DE044100\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier 09DE044100\u003c\/strong\u003e. The transformer steps down the primary supply voltage to the 24V secondary signal that powers your thermostat, control board, contactors, and every other low-voltage component in the system. When this transformer fails, the entire control circuit goes dead — the thermostat loses power, nothing responds to a call for heating or cooling, and the system appears completely inoperative.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 230V primary input | 115V secondary output | 50\/60 Hz | OEM Part # 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 OEM transformer meeting exact factory VA and voltage tolerances. Generic transformers often run under-rated VA, causing overheating, nuisance tripping of the built-in fuse, and premature control board damage — always choose OEM for a long-term fix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before starting. Label and photograph all low-voltage wiring before disconnecting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter to confirm 24V output after installation. Check for a shorted low-voltage wire (common transformer killer) before energizing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse stock.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier 09DE044100\u003c\/strong\u003e. Verify your unit's data plate primary voltage and VA requirement match HT01BC208 specifications before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640134029683,"sku":"CARRIE-09DE044100-TRANSFORMER-HT01BC208","price":53.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640134062451,"sku":"CARRIE-09DE044100-TRANSFORMER-HT01BC208-GEN","price":47.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC208_7838d4fb-5ae3-4c36-8a14-3fc08c1f9f21.jpg?v=1775025850","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de044100-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}