{"product_id":"carrier-py2ppb048115aa-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/240V–24V for PY2PPB048115AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model PY2PPB048115AA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier control transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PY2PPB048115AA\u003c\/strong\u003e packaged unit. The control transformer steps down line voltage (208\/240V primary) to the 24V secondary required by the low-voltage control circuit. When this transformer fails, the entire control circuit loses power — thermostats, contactors, relays, and safety boards will all go unresponsive. If your unit shows zero activity despite having line power at the disconnect, a failed transformer is one of the first components to test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary 208\/240V | Secondary 24V | 40VA rating | 50\/60 Hz | Weight approx. 1.0 lb | Replaces OEM part numbers 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 factory VA and voltage tolerance specifications. Aftermarket transformers may be under-rated in VA, causing the secondary to sag under load and triggering nuisance tripping of the integrated thermal fuse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power at the unit disconnect and breaker before proceeding. Tools needed: multimeter (verify 0V before touching wires), flathead and Phillips screwdrivers, wire stripper, and wire nuts or spade terminals. Label all low-voltage wiring before disconnecting. Verify 24V output on secondary terminals before buttoning up the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePY2PPB048115AA\u003c\/strong\u003e packaged unit. This part is also a known replacement for units previously using HT01BD207, HT01CN232, and 9076-00. Always verify your existing transformer's primary voltage, secondary voltage, and VA rating against your unit's data plate before installing. Need a fitment check? Our HVAC parts specialists confirm compatibility before you order — call or chat now. \u003cstrong\u003eIn stock and ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640507715955,"sku":"CARRIE-PY2PPB048115AA-TRANSFORMER-HT01BD209","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640507748723,"sku":"CARRIE-PY2PPB048115AA-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_1afcfd74-77c4-4bb0-99a1-b4b6f90785c9.jpg?v=1775025652","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2ppb048115aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}