{"product_id":"payne-pa3gpaa36000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120V\/24V for PA3GPAA36000AA","description":"\u003ch1\u003eOEM Payne Transformer 40VA 120V to 24V for Model PA3GPAA36000AA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003ePayne PA3GPAA36000AA\u003c\/strong\u003e packaged air conditioning unit. The transformer steps down 120V line voltage to the 24V signal voltage required by your thermostat, control board, contactor coil, and all low-voltage accessories. When this component fails, the entire control circuit goes dark — your thermostat will display nothing or fail to trigger any system response, making this one of the first components to check during a no-power diagnostic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD209 | Factory-matched output tolerance for stable low-voltage operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Payne transformer manufactured to exact factory specifications. Generic alternatives often carry inconsistent VA ratings that can overload and damage downstream control boards — always choose OEM for critical control circuit components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter, wire nuts. Label or photograph all wiring connections before removal. Verify secondary output voltage with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory 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 Designed as a direct OEM replacement for the Payne \u003cstrong\u003ePA3GPAA36000AA\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages against your unit's data plate before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908904735091,"sku":"PAYNE-PA3GPAA36000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908904767859,"sku":"PAYNE-PA3GPAA36000AA-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_60c1da8e-4270-473e-86b2-b086daa07d8f.jpg?v=1780718964","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3gpaa36000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}