{"product_id":"carrier-py3gnaa24060na-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/230V–24V for PY3GNAA24060NA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V to 24V for Model PY3GNAA24060NA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GNAA24060NA\u003c\/strong\u003e packaged unit. The transformer steps down line-voltage power (208\/230V) to the 24V low-voltage signal that drives your thermostat, control board, and all safety circuits. When this part fails, the entire control circuit goes dark — the thermostat loses power, relays won't energize, and the system produces no heating or cooling response whatsoever.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA capacity | 208\/230V primary input | 24V secondary output | 50\/60Hz | Class 2 control transformer | Foot-mount configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part — factory-matched to exact VA rating and winding tolerances. Undersized or off-spec generic transformers can overheat, trip thermal cutoffs prematurely, or fail to supply adequate current to modern multi-stage control boards.\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, needle-nose pliers, multimeter. Label all low-voltage wires before removing the old transformer. Verify 24V output with a meter after installation before restoring power to controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — ships same business day from our warehouse. Also replaces legacy Carrier part numbers HT01BD207, HT01CN232, and 9076-00.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePY3GNAA24060NA\u003c\/strong\u003e packaged units. Verify your unit's data plate confirms a 208\/230V primary control circuit before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — contact us today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640460398963,"sku":"CARRIE-PY3GNAA24060NA-TRANSFORMER-HT01BD209","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640460431731,"sku":"CARRIE-PY3GNAA24060NA-TRANSFORMER-HT01BD209-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_58c0bc59-4709-42e9-b1c6-3d178e7f350f.jpg?v=1775025503","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gnaa24060na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}