{"product_id":"carrier-py3pna048115aa-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/230V for PY3PNA048115AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V — HT01BD209 for Model PY3PNA048115AA\u003c\/h1\u003e\u003cp\u003eThis genuine OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PNA048115AA\u003c\/strong\u003e packaged unit. The transformer steps down 208\/230V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When it fails, the entire control circuit goes dark — you'll see a blank thermostat, hear no contactor pull-in, or find the system completely unresponsive to any call for heating or cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 208\/230V primary input | 24V secondary output | 50\/60 Hz | Replaces HT01BD207, HT01CN232, and 9076-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM transformer wound to exact VA and voltage tolerances. Undersized or off-spec aftermarket units can starve the 24V circuit under load, causing nuisance lockouts and premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (verify 0V before touching terminals), wire nuts or spade connectors. Photograph existing wiring before removal. Confirm primary voltage matches your supply.\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 Directly fits \u003cstrong\u003eCarrier PY3PNA048115AA\u003c\/strong\u003e packaged units. Cross-references OEM part numbers HT01BD207, HT01CN232, and 9076-00. Always verify your unit's data plate voltage and VA requirements before ordering. Need fitment confirmation? Our HVAC parts team will verify compatibility before your order ships — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640380117363,"sku":"CARRIE-PY3PNA048115AA-TRANSFORMER-HT01BD209","price":87.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640380150131,"sku":"CARRIE-PY3PNA048115AA-TRANSFORMER-HT01BD209-GEN","price":77.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_3f54cd00-0508-423b-ad5d-70499b4a39ae.jpg?v=1775025433","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna048115aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}