{"product_id":"carrier-hp13pr04200gakaa-transformer-h4oyjb","title":"OEM Carrier Transformer 40VA 120V\/24V for HP13PR04200GAKAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model HP13PR04200GAKAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier HP13PR04200GAKAA\u003c\/strong\u003e heat pump system. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, contactor coil, and control board. When this component fails, the entire low-voltage control circuit loses power — resulting in a completely unresponsive thermostat, no system response to calls for heating or cooling, and potential control board fault codes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01AW229 | Factory-matched winding tolerances for stable, clean 24V output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers deliver tightly regulated 24V output that protects sensitive control boards and thermostat circuits. Generic alternatives often produce voltage fluctuations that can trigger nuisance faults or prematurely damage downstream components over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to confirm input\/output voltage after install). Label all wires prior to disconnecting the old transformer. Verify 24V output before closing the cabinet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse when ordered by 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the Carrier \u003cstrong\u003eHP13PR04200GAKAA\u003c\/strong\u003e heat pump. Always verify the 40VA rating and 120V primary \/ 24V secondary voltage specifications on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — call or chat today and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909318955379,"sku":"CARRIE-HP13PR04200GAKAA-TRANSFORMER-HT01AW229","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909318988147,"sku":"CARRIE-HP13PR04200GAKAA-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_65677887-b23d-4a1f-b492-23107ec50f42.jpg?v=1782941674","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hp13pr04200gakaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}