{"product_id":"carrier-ch13na04800gacba-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120\/24V for CH13NA04800GACBA — HT01AW229","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model CH13NA04800GACBA\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 CH13NA04800GACBA\u003c\/strong\u003e split-system condenser. The transformer steps down line voltage (120V) to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When it fails, the entire control system goes dark — your thermostat will appear dead, the contactor won't pull in, and the system will not respond to any call for cooling. A failed transformer is often misdiagnosed as a bad thermostat or control board, making it one of the most important first checks during a no-response service call.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory-matched to Carrier CH13NA04800GACBA control circuit requirements | OEM Part Number: HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer built to exact VA and voltage tolerances. Generic transformers can run under-rated VA, causing brownouts to the control board and premature contactor coil failure — always replace with the factory-specified unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the disconnect box and verify zero voltage before proceeding. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade terminals. Label or photograph all wiring connections before removal. Verify 24V output on the new transformer before closing the cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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 for the Carrier \u003cstrong\u003eCH13NA04800GACBA\u003c\/strong\u003e 4-ton split-system condenser. Confirm your unit's control circuit requires a 40VA 120V\/24V transformer by checking the data plate or existing transformer label before ordering. Our fitment team is available to verify compatibility — just reach out before you buy. Order today and receive same-day shipping on all in-stock parts.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909625893235,"sku":"CARRIE-CH13NA04800GACBA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909625926003,"sku":"CARRIE-CH13NA04800GACBA-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_dedca9e1-925f-425b-8082-4b81ad254c5b.jpg?v=1782938605","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch13na04800gacba-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}