{"product_id":"carrier-09de064c510-transformer-h2ut4z","title":"OEM Carrier Control Transformer 40VA 230\/115V — 09DE064C510","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 230V\/115V for Model 09DE064C510\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part #HT01BC208) is the factory-specified replacement for the \u003cstrong\u003eCarrier 09DE064C510\u003c\/strong\u003e. The transformer steps voltage down from the primary supply side to power the low-voltage control circuit that operates contactors, relays, thermostats, and safety switches. When this transformer fails, the entire control circuit goes dead — the system will not respond to the thermostat, and nothing will operate. A faulty transformer is often the cause of a completely unresponsive HVAC system even when line voltage is confirmed present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 230V primary \/ 115V secondary | 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 Totaline\/Carrier OEM transformer wound to exact factory VA and voltage tolerances. Aftermarket transformers often run undersized VA ratings, causing premature burnout — especially on systems with high control-circuit loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: multimeter, insulated screwdrivers, wire nuts or spade connectors. Verify primary and secondary voltages with a meter before and after installation. Label or photograph all wiring connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Carrier model \u003cstrong\u003e09DE064C510\u003c\/strong\u003e. Always verify the primary voltage (230V), secondary voltage (115V), and VA rating (40VA) against your unit's data plate before ordering to ensure a correct fit. Our parts team is available to confirm compatibility before you buy — ships same day, no hassle.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640125149555,"sku":"CARRIE-09DE064C510-TRANSFORMER-HT01BC208","price":53.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640125182323,"sku":"CARRIE-09DE064C510-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_ef970e48-e50a-4deb-8ba6-6bd06efa6287.jpg?v=1775025848","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de064c510-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}