{"product_id":"carrier-c48a202761-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V-24V for C48A202761 — Ships Today","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C48A202761\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C48A202761\u003c\/strong\u003e packaged unit. The transformer steps down line voltage from 120V to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat displays nothing, the system refuses to start, and no error codes can be read. It is often the first component to check when a unit is completely unresponsive despite having line voltage present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rating | OEM part number HT01BD236 | Factory-matched for Carrier C48A202761 packaged units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer wound to exact VA and voltage tolerances. Generic transformers frequently run under-rated VA capacity, causing thermal overload shutdowns and premature failure — especially in warm climates where control circuits draw sustained current.\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 power. Photograph all wiring connections prior to 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 specifically for the Carrier \u003cstrong\u003eC48A202761\u003c\/strong\u003e packaged unit. Always verify your unit's control circuit voltage and VA requirement against your data plate before ordering. Our fitment team is available to confirm compatibility before you buy — same-day shipping on all in-stock OEM parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909761552755,"sku":"CARRIE-C48A202761-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909761585523,"sku":"CARRIE-C48A202761-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_38ba2248-9c6c-4c82-bb6b-7acaf8f66443.jpg?v=1782939303","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a202761-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}