{"product_id":"carrier-py3gna048130na-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/240V–24V for PY3GNA048130NA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model PY3GNA048130NA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM control transformer for the \u003cstrong\u003eCarrier PY3GNA048130NA\u003c\/strong\u003e packaged unit. The transformer steps down 208\/240V line voltage to the 24V AC signal that powers your thermostat, control board, contactor coil, and every other low-voltage circuit in the system. When it fails — due to a shorted low-voltage wire, a failed component drawing excess current, or age-related winding breakdown — the entire control circuit goes dead. You'll see a blank thermostat, no response to any call for heating or cooling, and zero activity at the unit despite line power being present.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/240V Primary | 24V Secondary | 40VA rated | 50\/60 Hz | OEM Part# HT01BD209 | Also replaces HT01BD207, HT01CN232, 9076-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and potted to exact Carrier specifications, ensuring proper VA capacity and thermal protection. Generic units may be under-rated for VA draw in multi-stage systems, leading to premature failure or nuisance lockouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Always photograph existing wiring before removal. Inspect all 24V wiring for shorts before installing the new transformer — a shorted wire will burn out a new transformer immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Factory-specified replacement for Carrier model \u003cstrong\u003ePY3GNA048130NA\u003c\/strong\u003e. This transformer is also used across multiple Carrier, Bryant, and Payne platform units that share the 208\/240V–24V 40VA specification — verify your unit's data plate and existing part number before ordering. Our team is available to confirm fitment prior to purchase. \u003cstrong\u003eOrder now — in stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640470098291,"sku":"CARRIE-PY3GNA048130NA-TRANSFORMER-HT01BD209","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640470131059,"sku":"CARRIE-PY3GNA048130NA-TRANSFORMER-HT01BD209-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_1f3a148c-e3da-4e5a-9577-21d23343ce51.jpg?v=1775025679","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna048130na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}