{"product_id":"carrier-ch13na03000gaaba-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for CH13NA03000GAABA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model CH13NA03000GAABA\u003c\/h1\u003e\u003cp\u003eThis OEM control circuit transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier CH13NA03000GAABA\u003c\/strong\u003e air conditioning system. The transformer steps down line voltage from 120V to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control wiring. When this transformer fails, the entire control circuit goes dark — the thermostat loses power, the system refuses to respond to any call for cooling or heating, and nothing works at all. It is often one of the first components to inspect when a system appears completely unresponsive despite having line voltage present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA capacity | OEM part number HT01AW229 | Factory-matched windings and insulation class\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer built to exact factory VA and voltage tolerances. Generic replacements may run undervoltage under load, causing nuisance lockouts, contactor chatter, or premature control board failure — making the OEM choice a long-term investment in system reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker and disconnect switch before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, needle-nose pliers. Label or photograph all low-voltage wiring connections before removal. Verify output voltage with a multimeter after installation before closing the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. 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\u003eCH13NA03000GAABA\u003c\/strong\u003e condensing unit. Always confirm input voltage, output voltage, and VA rating on your existing transformer's label before ordering to ensure a direct drop-in fit. Our HVAC parts specialists are available to verify fitment before you purchase — no guesswork required. Order today and receive same-day shipping on all in-stock items.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909636837747,"sku":"CARRIE-CH13NA03000GAABA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909636870515,"sku":"CARRIE-CH13NA03000GAABA-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_ba3c7932-66a9-45d4-bee2-a5c23d22fa0c.jpg?v=1782940752","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ch13na03000gaaba-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}