{"product_id":"carrier-py2pnb048090aa-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY2PNB048090AA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 208\/240V to 24V for Model PY2PNB048090AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD209) is the factory-specified control voltage transformer for the \u003cstrong\u003eCarrier PY2PNB048090AA\u003c\/strong\u003e packaged unit. Its job is to step down the 208\/240V line voltage to the 24V signal voltage that powers your thermostat, contactor coils, gas valve, and control board. When this transformer fails, the entire low-voltage control circuit goes dead — you'll see a blank thermostat, hear no contactor click, and the system will not respond to any call for heating or cooling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part #HT01BD209 | Input: 208\/240V primary | Output: 24V secondary | Rating: 40VA | Frequency: 50\/60 Hz | Factory-matched construction for Carrier packaged systems\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 tolerances for VA capacity and winding insulation. Generic substitutes may be under-rated for VA draw, leading to overheating, tripped thermal fuses, and repeat failures within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power at the disconnect box and verify zero voltage with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph all wiring connections before removal. Most techs complete this swap in under 20 minutes.\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 Verified OEM replacement for Carrier model \u003cstrong\u003ePY2PNB048090AA\u003c\/strong\u003e. Always confirm input voltage on your unit's data plate matches 208\/240V before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640536584563,"sku":"CARRIE-PY2PNB048090AA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640536617331,"sku":"CARRIE-PY2PNB048090AA-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_79f19318-0cc4-4861-96ff-c4a11ea25f59.jpg?v=1782942303","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2pnb048090aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}