{"product_id":"carrier-c48a502061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C48A502061","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model C48A502061\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 C48A502061\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal voltage required to power the thermostat, control board, contactor coil, and all low-voltage system controls. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system will not respond to any calls for heating or cooling, and nothing works. A failed transformer is often the first suspect when a system appears completely unresponsive despite having line voltage present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD236 | Factory-matched construction for C48A502061 packaged units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and voltage specifications, ensuring stable 24V output under full control circuit load. Generic transformers often run undersized VA ratings, causing voltage sag that triggers nuisance lockouts and premature control board failure.\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, multimeter, wire stripper, spade connectors. Verify 24V output at secondary terminals after installation before restoring full system power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier C48A502061\u003c\/strong\u003e packaged unit. Always confirm your unit's data plate voltage requirements and existing transformer VA rating before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order for complete peace of mind. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909736812915,"sku":"CARRIE-C48A502061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909736845683,"sku":"CARRIE-C48A502061-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_53e51a09-e204-4923-9b18-9820bbb8bfe6.jpg?v=1782940162","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c48a502061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}