{"product_id":"carrier-py3gpaa60130aa-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/230V for PY3GPAA60130AA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V–24V for Model PY3GPAA60130AA\u003c\/h1\u003e\u003cp\u003eThis genuine OEM Carrier control transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3GPAA60130AA\u003c\/strong\u003e packaged unit. The transformer steps down 208\/230V line voltage to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, gas valve solenoid, and control board. When this transformer fails, the entire system goes dark: the thermostat loses power, nothing responds to calls for heating or cooling, and no fault codes appear on the board. A failed transformer is often misdiagnosed as a board failure, making correct identification critical before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V primary | 24V secondary | 40VA rating | 50\/60 Hz | Part # HT01BD209 | Also 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 factory VA and voltage tolerances. Undersized or off-spec generic transformers can overheat, trip internal breakers, or cause nuisance faults on sensitive control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power at the disconnect before starting. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter. Label all wire connections before removal. Verify 24V output with a meter after installation before closing the panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse — get your system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePY3GPAA60130AA\u003c\/strong\u003e packaged units. Verify input voltage (208V or 230V) on your unit's data plate before ordering. Cross-reference part numbers HT01BD207, HT01CN232, and 9076-00 are confirmed factory supersessions. Questions about fitment? Our HVAC parts team verifies compatibility before you order — call or chat today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640432218483,"sku":"CARRIE-PY3GPAA60130AA-TRANSFORMER-HT01BD209","price":87.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640432251251,"sku":"CARRIE-PY3GPAA60130AA-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_927f0ff1-a983-47a2-afda-ade1780aa7bb.jpg?v=1775025428","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gpaa60130aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}