{"product_id":"carrier-09de084510-transformer-h2ut4z","title":"OEM Carrier Transformer 40VA 230\/115V for Model 09DE084510","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC208 for Model 09DE084510\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier 09DE084510\u003c\/strong\u003e unit. The transformer steps down line voltage to a safe, low-voltage signal that powers the control board, thermostat circuit, and all 24V control components. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to any commands, and no heating or cooling operation is possible. It is one of the most critical — yet often overlooked — components in any HVAC system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 230V primary input | 115V secondary output | Totaline OEM part | Cross-references: 320659-301, 2-05757-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is wound to exact Carrier factory tolerances, ensuring stable voltage output under full control load. Generic transformers can run outside tolerance, causing nuisance lockouts, board damage, and intermittent control failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. Verify input\/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. 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 the Carrier \u003cstrong\u003e09DE084510\u003c\/strong\u003e. Verify your unit's data plate shows a 230V primary and 115V secondary transformer requirement before ordering. Not sure if this part fits? Our HVAC parts specialists confirm fitment before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640123380083,"sku":"CARRIE-09DE084510-TRANSFORMER-HT01BC208","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640123412851,"sku":"CARRIE-09DE084510-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_07ef029d-528b-4d4c-8a74-1154363da273.jpg?v=1782942491","url":"https:\/\/nationalhvacparts.com\/products\/carrier-09de084510-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}