{"product_id":"carrier-py3gnaa30060na-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY3GNAA30060NA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model PY3GNAA30060NA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GNAA30060NA\u003c\/strong\u003e packaged unit. The transformer steps down line voltage from 208\/240V to the 24V control circuit that powers your thermostat, contactor coils, and control board. When this transformer fails, the entire low-voltage control system goes dead — no thermostat response, no contactor pull-in, and no call for heating or cooling. If your system is completely unresponsive despite a live line-voltage supply, a failed transformer is one of the first components to check.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/240V primary input | 24V secondary output | 40VA power rating | 50\/60 Hz | Factory OEM part #HT01BD209\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to Carrier's exact VA and voltage tolerance specifications. Generic units may run marginally out of spec under load, causing intermittent lockouts or premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: multimeter (to confirm 0V before touching wires), flat-head and Phillips screwdrivers, wire nuts or spade terminals. Photograph existing wiring before disconnecting. Confirm correct VA rating matches your control circuit load.\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 Designed for the Carrier \u003cstrong\u003ePY3GNAA30060NA\u003c\/strong\u003e packaged unit. Also fits a broad range of Carrier, Bryant, and Payne systems requiring a 208\/240V-to-24V 40VA control transformer — always verify against your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640458531187,"sku":"CARRIE-PY3GNAA30060NA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640458563955,"sku":"CARRIE-PY3GNAA30060NA-TRANSFORMER-HT01BD209-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-HT01BD209_e0cea475-01dc-4a00-b38f-9b343014c960.jpg?v=1782942373","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gnaa30060na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}