{"product_id":"carrier-py3gna048090na-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY3GNA048090NA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V — Model PY3GNA048090NA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part # HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GNA048090NA\u003c\/strong\u003e packaged HVAC unit. The transformer steps down line voltage from 208\/240V to the 24V required to power the entire low-voltage control circuit — including the thermostat, contactor coil, gas valve, and control board. When this transformer fails, the result is a completely unresponsive system: the thermostat goes blank, no signals reach any components, and the unit will not heat, cool, or circulate air.\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 — exact form, fit, and function match\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to Carrier's exact VA and impedance specifications, ensuring proper inrush current handling and protection against control circuit overloads. Generic alternatives may be under-rated, leading to premature failure or nuisance tripping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect and breaker before beginning. Tools needed: flat-head and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wiring connections before disconnecting. Swap wire-for-wire on the secondary terminals.\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\u003ePY3GNA048090NA\u003c\/strong\u003e packaged unit. Verify input voltage on your unit's data plate (208V or 240V) before ordering — this transformer supports both. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you order. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640474489203,"sku":"CARRIE-PY3GNA048090NA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640474521971,"sku":"CARRIE-PY3GNA048090NA-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_fdadd72b-68dd-4607-a36a-0e88a7d08036.jpg?v=1782942354","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna048090na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}