{"product_id":"carrier-py3gna060115na-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY3GNA060115NA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V — Model PY3GNA060115NA\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HT01BD209\u003c\/strong\u003e is the factory-specified control transformer for the \u003cstrong\u003ePY3GNA060115NA\u003c\/strong\u003e packaged gas unit. This transformer steps high-line voltage (208\/240V) down to the 24V signal voltage that powers the entire control circuit — thermostat, gas valve, inducer relay, and all low-voltage safety switches. When this transformer fails, \u003cem\u003enothing works\u003c\/em\u003e: no fan, no heat, no response from the thermostat — because there is no control voltage present anywhere in the system. A blown fuse on the secondary side is often the first clue.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 208\/240V AC | Output 24V AC | 40VA power rating | 50\/60Hz | OEM part number HT01BD209 | Factory foot-mount configuration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances. Undersized aftermarket units overheat under full control-circuit load, leading to repeated nuisance fuse failures and premature burnout. This is the factory part — no surprises.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before starting. Discharge any residual voltage, then document all low-voltage wire connections with a photo before removing the old transformer. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V output after installation before energizing the full system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePY3GNA060115NA\u003c\/strong\u003e packaged gas unit. Always verify input voltage against your unit's data plate — 208V and 240V taps are both supported. If you are unsure of fitment, contact our team and we will confirm before you order. In stock and ready to ship today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640464920947,"sku":"CARRIE-PY3GNA060115NA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640464953715,"sku":"CARRIE-PY3GNA060115NA-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_e3285e9f-0993-44d9-b229-885e4b2c2c7a.jpg?v=1782942368","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3gna060115na-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}