{"product_id":"carrier-py3gna036060na-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/230V–24V for PY3GNA036060NA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V to 24V for Model PY3GNA036060NA\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HT01BD209\u003c\/strong\u003e is the factory-specified 40VA step-down control transformer for the \u003cstrong\u003ePY3GNA036060NA\u003c\/strong\u003e system. It converts the unit's 208\/230V line voltage down to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, gas valve, and all safety switches. When this transformer fails, the entire control circuit goes dark: the thermostat loses power, the system won't respond to any call for heating or cooling, and in some cases a blown internal fuse will indicate a downstream short that took the transformer with it.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 208\/230V primary | 24V secondary | 50\/60Hz | Compact steel frame housing | Replaces OEM part numbers HT01BD207, HT01CN232, and 4000A46E07AE28\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine factory OEM part, wound to exact Carrier tolerances. Generic aftermarket transformers often underperform under peak VA load, causing nuisance shutdowns and premature failure of downstream controls.\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 proceeding. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install). Always photograph wiring before disconnecting leads. Check for a shorted downstream component if the old transformer failed — a short will kill a new unit just as fast.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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 Engineered for the Carrier \u003cstrong\u003ePY3GNA036060NA\u003c\/strong\u003e system. Verify your unit's data plate shows 208\/230V primary and 24V control voltage before ordering. Cross-reference OEM part numbers HT01BD207, HT01CN232, or 4000A46E07AE28 also confirm fitment. Our parts team is available to verify fitment before you order — no guessing required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640481403251,"sku":"CARRIE-PY3GNA036060NA-TRANSFORMER-HT01BD209","price":35.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640481436019,"sku":"CARRIE-PY3GNA036060NA-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_4cbd665f-76dc-4fdd-a07a-987f9462d788.jpg?v=1775025493","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna036060na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}