{"product_id":"carrier-hp13pr03000gakaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for HP13PR03000GAKAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01AW229 for Model HP13PR03000GAKAA\u003c\/h1\u003e\u003cp\u003eThis is the factory-original OEM replacement transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier HP13PR03000GAKAA\u003c\/strong\u003e heat pump system. The transformer steps down 120V line voltage to 24V AC, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, nothing in the system responds: the thermostat goes blank, the unit will not energize, and no heating or cooling is possible. It is often the first component to suspect when a system goes completely unresponsive despite confirmed line voltage at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Designed to factory OEM tolerance | Direct drop-in replacement for part number HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and rated to Carrier's exact VA specification. Undersized or off-brand transformers can brown out under full control circuit load, causing intermittent lockouts, nuisance tripping, or premature board failure — OEM eliminates that risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Confirm 24V output after installation before restoring full system power. Photograph all wiring connections prior to disconnecting the old unit.\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 Engineered specifically for the Carrier \u003cstrong\u003eHP13PR03000GAKAA\u003c\/strong\u003e heat pump. Always verify your existing transformer's VA rating and primary\/secondary voltage from the unit data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909319381363,"sku":"CARRIE-HP13PR03000GAKAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909319414131,"sku":"CARRIE-HP13PR03000GAKAA-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_c0cdba9b-691a-4aeb-868a-260863938bd8.jpg?v=1782941669","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hp13pr03000gakaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}