{"product_id":"carrier-c48a303062-transformer-h302a1","title":"OEM Carrier 40VA 120V to 24V Control Transformer for C48A303062 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V to 24V for Model C48A303062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A303062\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to 24V AC to power the control circuit — including the thermostat, contactor coil, and control board. When this component fails, the entire control circuit goes dead: the thermostat display goes blank, the system will not respond to any call for heating or cooling, and nothing operates. OEM part numbers \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e are both factory-authorized replacements for this application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Industry-standard footprint | Meets factory insulation and thermal protection requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers use factory-wound coils with precise VA ratings and built-in thermal cutoffs. Undersized or off-tolerance generic units can overheat under load, blowing fuses or causing nuisance lockouts and shortening control board life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify 24V output at secondary terminals before closing the panel. Always label wires before removal.\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\u003eC48A303062\u003c\/strong\u003e packaged unit. Cross-references OEM part numbers HT01BD236 and HT01BD702. Confirm primary voltage on your unit's data plate matches 120V before ordering. Our fitment team is available to verify compatibility before you purchase — ships today when ordered before 3 PM.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909752770931,"sku":"CARRIE-C48A303062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909752803699,"sku":"CARRIE-C48A303062-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_f96d9b97-2781-4e6f-b5bf-4b286d210f8f.jpg?v=1782899327","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a303062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}