{"product_id":"carrier-py2pnb048115aa-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/230V–24V for PY2PNB048115AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V to 24V for Model PY2PNB048115AA\u003c\/h1\u003e\u003cp\u003eThis genuine OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY2PNB048115AA\u003c\/strong\u003e packaged unit. The transformer steps down the 208\/230V line voltage to the 24V DC signal that powers your thermostat, control board, contactor coils, and every other low-voltage component in the system. When this part fails, nothing in the control circuit responds — the system will appear completely dead even with line voltage present at the unit.\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 rated | Foot-mount configuration | Direct OEM factory replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances, protecting sensitive control boards from under- or over-voltage conditions. Generic units often run outside ±5% tolerance, which can cause nuisance tripping, board damage, or premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect main power and verify zero voltage with a multimeter before proceeding. Note wire colors and terminal labels before removal. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Torque wire connections firmly to prevent intermittent faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty included. Ships same business day from our warehouse. Supersedes\/replaces OEM part numbers HT01BD207, HT01CN232, and 9076-00.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY2PNB048115AA\u003c\/strong\u003e packaged unit. Verify your unit's data plate shows a 208\/230V single-phase control circuit before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment before you buy — reach out before placing your order. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640535437683,"sku":"CARRIE-PY2PNB048115AA-TRANSFORMER-HT01BD209","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640535470451,"sku":"CARRIE-PY2PNB048115AA-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_0dfc8f9b-2140-46ca-b56b-db19903f8fbf.jpg?v=1775025487","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2pnb048115aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}