{"product_id":"carrier-ch14na03000gaaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120\/24V for CH14NA03000GAAAA — HT01AW229","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model CH14NA03000GAAAA (HT01AW229)\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier CH14NA03000GAAAA\u003c\/strong\u003e air conditioning system. The transformer steps down 120V line voltage to the 24V AC signal required to power the control board, thermostat, and all low-voltage components in the system. When the transformer fails, the entire control circuit goes dead — the thermostat loses power, the system refuses to respond to any commands, and there are no status LED codes on the control board because there is simply no voltage to run them. Replacing this transformer with the correct OEM part (HT01AW229) restores full 24V control circuit operation immediately.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01AW229 | Factory-matched output tolerance for reliable low-voltage control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and rated to exact factory specifications. Generic units frequently deliver inconsistent secondary voltage, which can cause erratic thermostat behavior, nuisance tripping, or premature control board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Photograph existing wiring before disconnecting. Confirm 24V output with multimeter after install before closing the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed by 3 PM EST ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003eCH14NA03000GAAAA\u003c\/strong\u003e split-system air conditioner. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or component label before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909616980339,"sku":"CARRIE-CH14NA03000GAAAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909617013107,"sku":"CARRIE-CH14NA03000GAAAA-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_c5a4aba2-60eb-4bec-b2da-9c0bd3fab558.jpg?v=1782938613","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch14na03000gaaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}