{"product_id":"carrier-c48a302751-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V Control Transformer for C48A302751 | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C48A302751\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier C48A302751\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V signal used by your thermostat, control board, contactor coil, and every other low-voltage component in the system. When it fails, absolutely nothing works — the thermostat goes dark, the system won't respond to any call for heating or cooling, and you may find a blown fuse on the control board from a secondary short.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary | 24V secondary | Factory-matched OEM dimensions and wire gauge | Designed for continuous duty in packaged unit applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier transformers are wound to exact VA and impedance specs for the C48A302751 control circuit. Undersized or off-spec generic units can overheat, blow secondary fuses repeatedly, or damage sensitive control boards — making OEM the smart long-term choice.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box and confirm voltage is zero with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdriver, multimeter, wire nuts or spade connectors. Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our in-stock warehouse inventory.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC48A302751\u003c\/strong\u003e packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering. If you're unsure about fitment, our HVAC parts specialists are available to confirm compatibility before you buy — no guesswork required. \u003cstrong\u003eOrder now and we'll ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909754147187,"sku":"CARRIE-C48A302751-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909754179955,"sku":"CARRIE-C48A302751-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_8ee8be1f-556e-4242-b330-05b262bb5ff4.jpg?v=1782938799","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a302751-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}