{"product_id":"payne-pa3gpaa30000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120\/24V for PA3GPAA30000AA — HT01BD209","description":"\u003ch1\u003eOEM Payne Control Transformer 40VA 120V\/24V for Model PA3GPAA30000AA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003ePayne PA3GPAA30000AA\u003c\/strong\u003e packaged air conditioning unit. The transformer steps down the 120V supply voltage to the 24V signal voltage required by the control board, thermostat, contactor coil, and all low-voltage control circuits. When the transformer fails, the entire control circuit goes dead — the thermostat shows no response, the system will not energize, and no fault codes will display on the board.\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 control circuit operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and rated to exact factory specifications. Generic replacements often use lighter gauge windings that overheat under sustained load, leading to premature failure and potential control board damage from voltage fluctuation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (verify 24V output after install). Always label or photograph wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse — order before 3PM local time for same-day dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Payne \u003cstrong\u003ePA3GPAA30000AA\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering to ensure a correct fit. Our parts specialists are available to confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908904833395,"sku":"PAYNE-PA3GPAA30000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908904866163,"sku":"PAYNE-PA3GPAA30000AA-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_f92ee96d-ddc0-4b1c-aacc-771a70fea93b.jpg?v=1780718794","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3gpaa30000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}