{"product_id":"carrier-py3ppa036060na-transformer-h30291","title":"OEM Carrier 40VA Transformer 120V-24V for PY3PPA036060NA — HT01BD209","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 120V–24V for Model PY3PPA036060NA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer (part #\u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PY3PPA036060NA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage switching circuits. When it fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to any call for heating or cooling, and nothing powers up. It is one of the most commonly overlooked failure points during a no-call diagnostic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input: 120V AC | Output: 24V AC | Rating: 40VA | Factory-matched OEM wiring and mounting configuration for direct drop-in replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD209 transformer meets Carrier's exact VA rating and insulation class. Generic units may run undersized VA tolerances, causing thermal overload and premature control board failure — especially under high demand from multiple zone valves or accessory loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label and photograph all low-voltage wiring before disconnecting. Confirm primary voltage at the unit before installing.\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 Engineered as a direct OEM fit for Carrier model \u003cstrong\u003ePY3PPA036060NA\u003c\/strong\u003e. Always verify your unit's control voltage and VA requirement on the data plate or wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy — order with confidence from NationalHVACParts.com.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640362881395,"sku":"CARRIE-PY3PPA036060NA-TRANSFORMER-HT01BD209","price":35.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640362914163,"sku":"CARRIE-PY3PPA036060NA-TRANSFORMER-HT01BD209-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_ccef92d3-8cff-46c7-9e8b-2a5fe48f9a64.jpg?v=1775016292","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa036060na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}