{"product_id":"carrier-py3ppa060090aa-transformer-h30291","title":"OEM Carrier Transformer 40VA 120V\/24V for PY3PPA060090AA — HT01BD209","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model PY3PPA060090AA — Part HT01BD209\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier PY3PPA060090AA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V AC signal that powers every component in your control circuit — thermostat, contactor coil, gas valve, and control board. When the transformer fails, the entire control circuit goes dark: the thermostat shows no power, and the system will not heat or cool regardless of the call for conditioning.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory OEM part number HT01BD209 | Direct plug-and-play replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier use the same core material, bobbin, and VA tolerance as the factory-installed unit. Generic substitutes often run near the edge of their VA rating, leading to premature burnout — especially in systems with high-draw accessories like humidifiers or multiple zone controllers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 0V before touching terminals), wire stripper, and needle-nose pliers. Label all low-voltage wires before removal and inspect the secondary side for any short-circuit condition that may have caused the original failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before 3 PM ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the Carrier \u003cstrong\u003ePY3PPA060090AA\u003c\/strong\u003e packaged unit. Verify your existing transformer's primary voltage (120V), secondary voltage (24V), and VA rating against the data plate inside your unit's control section before ordering. Our technical team is available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640348692851,"sku":"CARRIE-PY3PPA060090AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640348725619,"sku":"CARRIE-PY3PPA060090AA-TRANSFORMER-HT01BD209-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_07c0e9db-36e6-4117-98a5-c0bde867513d.jpg?v=1775041363","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa060090aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}