{"product_id":"carrier-ch13na04200gacaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120\/24V for CH13NA04200GACAA — HT01AW229","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model CH13NA04200GACAA — Part HT01AW229\u003c\/h1\u003e\u003cp\u003eThis OEM step-down control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier CH13NA04200GACAA\u003c\/strong\u003e split-system condenser unit. The transformer converts 120V line voltage to the 24V AC signal that powers the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, nothing in the control system responds: the thermostat goes blank, the contactor won't energize, and the system appears completely dead despite power being present at the disconnect.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V AC | Secondary voltage: 24V AC | VA rating: 40VA | OEM part number: HT01AW229 | Factory-matched output tolerance for stable low-voltage control operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier maintain precise 24V output under varying load conditions. Generic alternatives often show voltage sag under full control-circuit load, causing nuisance lockouts, erratic contactor chatter, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and confirm voltage is absent with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire nuts or spade terminals, multimeter. Label all wiring connections before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day when ordered before cutoff from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the Carrier \u003cstrong\u003eCH13NA04200GACAA\u003c\/strong\u003e split-system condenser. Always verify your existing transformer's primary\/secondary voltage and VA rating on the data plate or wiring diagram inside the unit panel before ordering to ensure a confirmed fit. Our fitment team is available to verify compatibility before you purchase — no guesswork required. \u003cstrong\u003eOrder today and your part ships the same business day.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909629399411,"sku":"CARRIE-CH13NA04200GACAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909629432179,"sku":"CARRIE-CH13NA04200GACAA-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_eb239afb-b597-47e6-a1c9-e21d14bcb789.jpg?v=1782938603","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch13na04200gacaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}