{"product_id":"carrier-c48a502062-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C48A502062","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V to 24V for Model C48A502062\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A502062\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, and control board. When it fails, the entire control circuit goes dead: the thermostat display may go blank, the system won't respond to calls for heating or cooling, and no safety outputs will function. A failed transformer is often misdiagnosed as a thermostat or control board issue, making it a critical first-check component.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Compatible OEM part numbers: \u003cstrong\u003eHT01BD236\u003c\/strong\u003e and \u003cstrong\u003eHT01BD702\u003c\/strong\u003e | Factory-matched construction for reliable low-voltage output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory VA specifications. Undersized or off-tolerance generic units can overheat under peak control circuit load, blowing internal fuses or damaging the control board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify 24V output with meter before reconnecting control wiring. Always label wires before disconnecting.\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\u003eC48A502062\u003c\/strong\u003e packaged unit. Cross-reference OEM part numbers HT01BD236 and HT01BD702 to confirm fitment. Verify primary voltage (120V) and VA rating on your unit's data plate before ordering. Our parts specialists are available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909736747379,"sku":"CARRIE-C48A502062-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909736780147,"sku":"CARRIE-C48A502062-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_c7507f10-75f6-4c8d-8ee9-847d5c448981.jpg?v=1782940164","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a502062-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}