{"product_id":"carrier-ch14na01800gaaaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for CH14NA01800GAAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model CH14NA01800GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier CH14NA01800GAAAA\u003c\/strong\u003e condenser unit. The transformer steps down 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, contactor coil, and safety controls. When the transformer fails, the system goes completely unresponsive: the thermostat goes blank, the contactor won't energize, and nothing runs. A failed transformer is often caused by a shorted low-voltage wire or a failed component drawing excess current, so always inspect the secondary circuit before installing a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 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 This OEM Carrier transformer is wound to exact factory VA and voltage specifications. Generic transformers may run at lower VA ratings, causing premature thermal cutout tripping under normal system loads.\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, needle-nose pliers, multimeter. Verify 24V output on secondary terminals after installation before restoring full system power. Check for low-voltage shorts before powering on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship 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\u003eCH14NA01800GAAAA\u003c\/strong\u003e condenser. Verify primary voltage and VA rating on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists confirm fitment before you buy — reach out before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909620060531,"sku":"CARRIE-CH14NA01800GAAAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909620093299,"sku":"CARRIE-CH14NA01800GAAAA-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_c88329f7-f555-41a9-a39a-e8062ea31b37.jpg?v=1782940779","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch14na01800gaaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}