{"product_id":"carrier-py2pnb048130aa-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/240V-24V — PY2PNB048130AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model PY2PNB048130AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY2PNB048130AA\u003c\/strong\u003e packaged unit. The transformer steps down the incoming 208\/240V line voltage to the 24V AC signal required to power your thermostat, control board, and all low-voltage system controls. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system stops responding to calls for heating or cooling, and no safety faults are logged because the board itself has no power to record them.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input: 208\/240V AC | Output: 24V AC | Power Rating: 40VA | Frequency: 50\/60 Hz | OEM Part #: HT01BD209\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine factory OEM transformer built to Carrier's exact VA rating and insulation class. Generic transformers are often under-rated, run hot under full load, and can fail prematurely — taking connected control boards with them.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wiring before disconnecting. Verify 24V output with a multimeter after installation before restoring full system power.\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 Carrier model \u003cstrong\u003ePY2PNB048130AA\u003c\/strong\u003e. Always verify the part number on your unit's data plate or existing transformer label before ordering. Our technical team is available to confirm fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640534028659,"sku":"CARRIE-PY2PNB048130AA-TRANSFORMER-HT01BD209","price":55.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640534061427,"sku":"CARRIE-PY2PNB048130AA-TRANSFORMER-HT01BD209-GEN","price":48.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_51015643-af8d-4cdd-8318-f1f309fcd09a.jpg?v=1775025595","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2pnb048130aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}