{"product_id":"carrier-c48a406062-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C48A406062 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V–24V for Model C48A406062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A406062\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V low-voltage signal used by your thermostat, contactor coil, control board, and all safety circuits. When this component fails, the entire control circuit goes dark — nothing responds: no thermostat display, no contactor pull-in, no ignition sequence. It is often the first component to check when a system appears completely dead despite confirmed line voltage at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Direct OEM replacement | Compatible OEM part numbers: \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to Carrier's exact VA and thermal specifications. Undersized or off-tolerance generic units can overheat under full control-circuit load, trip the internal fuse repeatedly, or fail prematurely — leaving you with an identical symptom and a second service call.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify 24V output after installation before restoring full system power. Photograph existing wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for \u003cstrong\u003eCarrier C48A406062\u003c\/strong\u003e packaged units. Cross-references OEM part numbers HT01BD236 and HT01BD702. Confirm your unit's data plate shows a 120V\/24V, 40VA control transformer requirement before ordering. Our HVAC parts specialists are available to verify fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909737402739,"sku":"CARRIE-C48A406062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909737435507,"sku":"CARRIE-C48A406062-TRANSFORMER-HT01BD236-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-HT01BD236_4f7606fa-4726-45ef-bf17-d99605cfdd4b.jpg?v=1782899369","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a406062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}