{"product_id":"carrier-c48a506051-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C48A506051","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model C48A506051\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified unit for the \u003cstrong\u003eCarrier C48A506051\u003c\/strong\u003e packaged system. The transformer steps line voltage (120V) down to the 24V required to power the entire control circuit — including the thermostat, contactor coil, and control board. When this component fails, nothing in the system responds: no heating, no cooling, no fan, and no thermostat communication. A failed transformer is often the first suspect when a system goes completely dead with no error codes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary voltage: 120V | Secondary voltage: 24V | Class 2 transformer | OEM part number HT01BD236 | Factory-matched for reliable control circuit performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the Carrier factory. Generic units may under-deliver VA capacity under load, causing intermittent control failures, nuisance lockouts, or premature burnout of downstream control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, wire nuts. Label and photograph existing wiring before disconnecting. Verify 24V output with a multimeter after installation before closing the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eC48A506051\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the data plate or wiring diagram before ordering. If you're unsure of fitment, our HVAC parts team can verify compatibility before you purchase. Order today and get same-day shipping — back in heat or cool faster.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909725639027,"sku":"CARRIE-C48A506051-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909725671795,"sku":"CARRIE-C48A506051-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_a9b3cd39-87f8-44c3-b850-b9f7ce1943d4.jpg?v=1782940238","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a506051-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}