{"product_id":"carrier-09de044c510-transformer-h2ut4z","title":"OEM Carrier 40VA Transformer 230V\/115V for Model 09DE044C510","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC208 for Model 09DE044C510\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier control transformer (part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e), factory-specified for the \u003cstrong\u003eCarrier 09DE044C510\u003c\/strong\u003e unit. The transformer steps down line voltage to power the low-voltage control circuit that operates your thermostat, contactor coil, and safety controls. When this transformer fails, the entire control circuit goes dead — your system will appear completely unresponsive, with no thermostat display, no contactor pull-in, and no response to any call for heating or cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 230V primary voltage | 115V secondary voltage | 50\/60 Hz | Totaline\/Carrier OEM build quality | Part No. HT01BC208 (cross-references: 320659-301, 2-05757-1)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the factory-matched OEM transformer, wound to exact Carrier tolerances. Generic transformers often carry an inferior VA rating or substandard core lamination, leading to overheating and premature failure under full control-circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker before beginning. Photograph all wiring connections prior to disconnecting the old transformer. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify output voltage post-install). Most experienced DIYers complete this repair in under 30 minutes.\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 Verified direct fit for Carrier model \u003cstrong\u003e09DE044C510\u003c\/strong\u003e. Cross-references OEM part numbers 320659-301 and 2-05757-1. Always confirm primary and secondary voltage ratings on your unit's data plate before ordering. Need fitment assistance? Our HVAC parts specialists verify compatibility before you buy — order with confidence and get same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640132063603,"sku":"CARRIE-09DE044C510-TRANSFORMER-HT01BC208","price":53.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640132096371,"sku":"CARRIE-09DE044C510-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_ea60b95a-7360-462c-925e-8a36c0b2ea14.jpg?v=1775016458","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de044c510-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}