{"product_id":"carrier-hb1cjx048000aaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V-24V for HB1CJX048000AAAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model HB1CJX048000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier HB1CJX048000AAAA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal required to power the thermostat, control board, contactor coil, and all low-voltage control components. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system refuses to respond to any call for heating or cooling, and no error codes will display because the board itself has lost power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rating | OEM part number HT01AW229 | Direct plug-and-play wiring match for HB1CJX048000AAAA\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 impedance specifications. Generic transformers may be under-rated for VA load, causing overheating, nuisance tripping of the internal fuse, or premature failure under full control-circuit demand.\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, wire stripper, multimeter. Confirm secondary output reads 24–28V AC before closing the cabinet. Photograph existing wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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\u003eHB1CJX048000AAAA\u003c\/strong\u003e packaged unit. Verify primary voltage (120V) and VA rating on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909344645491,"sku":"CARRIE-HB1CJX048000AAAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909344678259,"sku":"CARRIE-HB1CJX048000AAAA-TRANSFORMER-HT01AW229-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-HT01AW229_c5365d0b-5629-447a-b7b0-8e69eeaecb63.jpg?v=1782939912","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hb1cjx048000aaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}