{"product_id":"carrier-ph13na04200gabaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V — PH13NA04200GABAA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer 115\/208\/230V–24V for Model PH13NA04200GABAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH13NA04200GABAA\u003c\/strong\u003e heat pump system. The transformer steps down the 115\/208\/230V line voltage to the 24V signal used by the control board, thermostat, contactor coil, and safety switches. When this transformer fails, the entire low-voltage control circuit goes dead — the thermostat will appear unresponsive, the system won't energize, and no error codes will display because the board itself has no power. It is one of the most overlooked components in a no-operation diagnosis.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | 115\/208\/230 VAC primary | 24 VAC secondary | 50\/60 Hz | Foot-mounted configuration | Factory-matched OEM tolerances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part. Generic transformers often use thinner copper windings and lower-grade cores, increasing the risk of overheating under sustained load — especially in systems with multiple zones or accessories drawing from the 24V circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before replacing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Label all low-voltage wires before disconnecting. Transformer failure can sometimes be caused by a downstream short — check the low-voltage wiring and board fuse before powering back up.\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 Direct OEM replacement for \u003cstrong\u003eCarrier model PH13NA04200GABAA\u003c\/strong\u003e heat pump systems. Also fits Bryant and Payne units that call for the HT01AW229 \/ HT01AW229A transformer. Verify your existing transformer's VA rating, primary voltage, and mounting style against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641933681011,"sku":"CARRIE-PH13NA04200GABAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641933713779,"sku":"CARRIE-PH13NA04200GABAA-TRANSFORMER-HT01AW229-GEN","price":167.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_7b01853e-19aa-452d-8df8-05aa3ce77020.jpg?v=1775026004","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13na04200gabaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}