{"product_id":"carrier-c50a906064-transformer-h301d7","title":"OEM Carrier Transformer 40VA 120V\/24V for C50A906064","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD702 for Model C50A906064\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer (part number \u003cstrong\u003eHT01BD702\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C50A906064\u003c\/strong\u003e commercial packaged unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage components. When it fails, the entire control circuit goes dead — the thermostat goes blank, the system produces no response to any command, and no heating or cooling is delivered. It is often the first component to diagnose when nothing works at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD702 | Factory-matched for Carrier packaged unit electrical specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA ratings with proper thermal protection, preventing overload burnout. Generic units frequently use undersized cores that overheat and fail prematurely, especially under heavy control circuit load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, 1\/4\" nut driver, multimeter. Verify 0V at primary terminals before handling. Note existing wire connections or photograph wiring before disconnecting the old unit.\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 HVAC parts warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the \u003cstrong\u003eCarrier C50A906064\u003c\/strong\u003e commercial rooftop\/packaged unit. Always verify primary voltage and VA rating on your unit's data plate before ordering to ensure correct fitment. If you have any questions about compatibility, our parts specialists are ready to confirm fit before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909661184371,"sku":"CARRIE-C50A906064-TRANSFORMER-HT01BD702","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909661217139,"sku":"CARRIE-C50A906064-TRANSFORMER-HT01BD702-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-HT01BD702_630f0327-c4ef-4491-b8cd-542c951023bc.jpg?v=1782940724","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c50a906064-transformer-h301d7","provider":"National HVAC Parts","version":"1.0","type":"link"}