{"product_id":"carrier-ph12na036000agaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V-24V — PH12NA036000AG","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer 115\/208\/230V–24V for Model PH12NA036000AGAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier PH12NA036000AGAA\u003c\/strong\u003e heat pump system. The transformer steps down line voltage (115, 208, or 230V) to the 24VAC low-voltage signal that powers the entire control circuit — thermostat, contactor coils, reversing valve solenoid, and safety circuits. When this transformer fails, the result is a completely unresponsive system: your thermostat goes blank, the unit won't start, and no fault codes appear on the board because even the control board has lost power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA power rating | Primary: 115\/208\/230VAC, 50\/60 Hz | Secondary: 24VAC | Foot-mount configuration | OEM Part Number: HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part — not a universal substitute. OEM transformers are wound to exact VA tolerances, ensuring the control circuit is never under-powered during peak demand from multiple simultaneous loads (blower relay, contactor coil, zone boards).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24VAC output after install). Label all low-voltage wires before disconnecting. Incorrect wiring of the primary taps for your supply voltage will damage the new transformer.\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 Engineered specifically for the \u003cstrong\u003eCarrier PH12NA036000AGAA\u003c\/strong\u003e heat pump. Also cross-references to Carrier, Bryant, and Payne systems using OEM part HT01AW229 \/ HT01AW229A. Always verify your unit's control board voltage requirements and existing transformer VA rating on the data plate before ordering. Our technical team is available to confirm fitment prior to purchase — don't hesitate to reach out.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641956290931,"sku":"CARRIE-PH12NA036000AGAA-TRANSFORMER-HT01AW229","price":162.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641956323699,"sku":"CARRIE-PH12NA036000AGAA-TRANSFORMER-HT01AW229-GEN","price":142.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_41e00e55-cc1d-4756-80d4-f563060dde26.jpg?v=1775026089","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph12na036000agaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}