{"product_id":"carrier-c48a203062-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A203062 — Ships Today","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model C48A203062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A203062\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to 24V AC to power the control circuit — including the thermostat, contactor coil, and all safety switches. When it fails, the entire control circuit goes dead: the thermostat goes blank, the system won't respond to any call for heating or cooling, and nothing works. It's often the first component to diagnose when a unit is completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part numbers HT01BD236 and HT01BD702 | Factory-matched output voltage and VA capacity for the C48A203062 control circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory specifications, ensuring stable 24V output under full control circuit load. Generic units may sag under load, causing intermittent lockouts, nuisance trips, or premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before starting. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter. Label all low-voltage wires before disconnecting. Confirm primary voltage with a multimeter prior to installation.\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\u003eC48A203062\u003c\/strong\u003e packaged unit. Verify your existing transformer's primary voltage, secondary voltage, and VA rating on the unit data plate or old part label before ordering. Compatible with both OEM part numbers \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you order — reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909760831859,"sku":"CARRIE-C48A203062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909760864627,"sku":"CARRIE-C48A203062-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_e433a46d-48c5-4166-89a4-da1c4fd42a9d.jpg?v=1782939126","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a203062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}