{"product_id":"payne-pa3gna024000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120V-24V for PA3GNA024000AA","description":"\u003ch1\u003eOEM Payne Transformer 40VA 120V to 24V for Model PA3GNA024000AA\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 PA3GNA024000AA\u003c\/strong\u003e split-system air conditioner. The transformer steps down line voltage from 120V to the 24V signal required by your thermostat, control board, and all low-voltage safety circuits. When it fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for cooling or heating, and nothing operates. Replacing the transformer is often one of the quickest repairs on the job.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V | Secondary: 24V | OEM part number HT01BD209 | Factory-matched for Payne PA3GNA024000AA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and voltage specifications. Generic transformers frequently undersell their VA rating, leading to overheating, nuisance tripping, and premature control board failure — not a risk worth taking on a low-cost part.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all low-voltage wiring before disconnecting. Verify 24V output 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 for the Payne \u003cstrong\u003ePA3GNA024000AA\u003c\/strong\u003e split-system. Confirm your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or old part label before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908907684211,"sku":"PAYNE-PA3GNA024000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908907716979,"sku":"PAYNE-PA3GNA024000AA-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_2c7310f1-0e3c-4490-9e1f-44d58cd04b0a.jpg?v=1780718838","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3gna024000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}