{"product_id":"carrier-py1pjb048090nbaa-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY1PJB048090NBAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD209 for Model PY1PJB048090NBAA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier PY1PJB048090NBAA\u003c\/strong\u003e packaged HVAC unit. The transformer steps down 208\/240V line voltage to the 24V signal used by the thermostat, control board, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dead — the thermostat displays nothing, the system won't respond to any call for heating or cooling, and no safety components can communicate. If your Carrier unit is completely unresponsive despite confirmed line voltage, this transformer is one of the first components to test with a multimeter.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part # HT01BD209 | Input: 208\/240V | Output: 24V secondary | Rating: 40VA | Frequency: 50\/60 Hz | Factory-matched to Carrier control circuit requirements\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 impedance specifications. Generic units may underperform under peak load, causing nuisance lockouts or shortened control board life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power and verify with a multimeter before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before disconnecting. Primary and secondary terminals are clearly marked.\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 PY1PJB048090NBAA\u003c\/strong\u003e packaged units. Verify input voltage on your unit's data plate (208V or 240V) prior to ordering. Our parts specialists are available to confirm fitment — order with confidence today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641014210931,"sku":"CARRIE-PY1PJB048090NBAA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641014243699,"sku":"CARRIE-PY1PJB048090NBAA-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_3194f220-0ea3-4344-bfe1-336f3b139939.jpg?v=1782942242","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pjb048090nbaa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}