{"product_id":"carrier-py2ppb042090ab-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY2PPB042090AB","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V — HT01BD209 for Model PY2PPB042090AB\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier PY2PPB042090AB\u003c\/strong\u003e packaged heating and cooling unit. The transformer steps down line voltage to the 24V signal required by your thermostat, control board, and all low-voltage control circuit components. When this part fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for heating or cooling, and nothing powers on despite line voltage being present at the unit.\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 | OEM part number HT01BD209 | Factory-direct Carrier replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier OEM transformer built to exact factory VA tolerance. Generic transformers often run undersized on actual VA output, causing nuisance tripping, premature burnout, and unreliable low-voltage control — especially under full accessory load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off line-voltage power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, wire strippers, multimeter. Label all low-voltage wires before disconnecting. Verify 24V output with a multimeter before reassembling the unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 factory fit for the \u003cstrong\u003eCarrier PY2PPB042090AB\u003c\/strong\u003e packaged unit. Verify your unit's model and data plate voltage (208V or 240V) before ordering to confirm the correct primary tap configuration. Our parts specialists are available to verify fitment before you buy — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640511615347,"sku":"CARRIE-PY2PPB042090AB-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640511648115,"sku":"CARRIE-PY2PPB042090AB-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_9200f621-8222-4fff-ae58-c6d85d3f1de4.jpg?v=1782942320","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2ppb042090ab-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}