{"product_id":"carrier-py3ppa030060nb-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/230V–24V for PY3PPA030060NB","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V to 24V for Model PY3PPA030060NB\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part # HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PPA030060NB\u003c\/strong\u003e HVAC system. The transformer steps down line voltage from 208\/230V to the 24V low-voltage signal that powers your thermostat, control board, and all safety circuit components. When this part fails, the entire control circuit goes dark — symptoms include a completely unresponsive thermostat, a system that won't respond to any call for heating or cooling, or tripped 24V fuses caused by a shorted transformer secondary winding.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA rated | 50\/60Hz | Class 2 control transformer | Replaces OEM part numbers HT01BD207, HT01CN232, and 9076-00\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 specs. Undersized or off-tolerance generic units can overheat, blow fuses repeatedly, or fail to supply adequate current to the control board under load — leading to misdiagnosis and repeat service calls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label and photograph all low-voltage wiring before disconnecting. After installation, verify 24–28V AC output at the secondary terminals under load before re-energizing the full system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before the cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model PY3PPA030060NB\u003c\/strong\u003e. Also replaces legacy Carrier part numbers HT01BD207, HT01CN232, and 9076-00. Confirm 208\/230V primary voltage on your unit's data plate before ordering. Our fitment team is available to verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640365076851,"sku":"CARRIE-PY3PPA030060NB-TRANSFORMER-HT01BD209","price":56.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640365109619,"sku":"CARRIE-PY3PPA030060NB-TRANSFORMER-HT01BD209-GEN","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_dbd8a4ed-4f93-4b3b-ad96-cf931ec4d691.jpg?v=1775025521","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa030060nb-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}