{"product_id":"carrier-c48a205052-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V to 24V for C48A205052 (HT01BD236) | National HVAC Parts","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V to 24V for Model C48A205052\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier C48A205052\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V signal used by the thermostat, control board, contactor coil, and all low-voltage control components. When this part fails, the entire control circuit loses power — the system will appear completely dead, with no response from the thermostat, no contactor pull-in, and no ignition sequence. It is often the first component to inspect when nothing works at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | Factory OEM part number HT01BD236 | Engineered to Carrier factory tolerances for the C48A205052\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to the exact VA rating Carrier specifies. Undersized or off-tolerance generic transformers can overheat, trip their internal breaker repeatedly, or fail prematurely — leaving you with the same no-power symptom within months.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (verify 0V at primary before touching wires). Photograph existing wiring connections before disconnecting. The transformer mounts to the control panel with two screws; primary and secondary leads connect to quick-connect or screw terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for the \u003cstrong\u003eCarrier C48A205052\u003c\/strong\u003e packaged unit. Always verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or wiring diagram before ordering. If you have questions about fitment, our HVAC parts specialists confirm compatibility before you buy — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909757751667,"sku":"CARRIE-C48A205052-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909757784435,"sku":"CARRIE-C48A205052-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_3a581261-a491-4ff6-b9eb-3189865bca0c.jpg?v=1782939134","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a205052-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}