{"product_id":"payne-pa3zna060000aa-transformer-h3025m","title":"OEM Payne Transformer 40VA 120V-24V for PA3ZNA060000AA","description":"\u003ch1\u003eOEM Payne 40VA Control Transformer for Model PA3ZNA060000AA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD242\u003c\/strong\u003e) is the factory-specified control transformer for the \u003cstrong\u003ePayne PA3ZNA060000AA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, contactor coil, gas valve, and all other low-voltage control components. When the transformer fails — due to a shorted control wire, failed component, or simply age — the entire control circuit goes dead: the thermostat goes blank, the system won't respond to any call for heating or cooling, and nothing runs.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM part number HT01BD242 | Factory-matched to Payne PA3ZNA060000AA control board wiring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the factory control board. Undersized or off-tolerance generic units can overheat, trip internal fuses prematurely, or fail to hold voltage under full control-circuit load — leaving you chasing a repeat no-power complaint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter. Check for a shorted low-voltage wire or failed component (contactor coil, gas valve solenoid) before installing — an uncleared short will blow the new transformer immediately. Photograph all wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. 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 as a direct OEM replacement for the Payne \u003cstrong\u003ePA3ZNA060000AA\u003c\/strong\u003e packaged unit. Always verify the 120V primary \/ 24V secondary \/ 40VA rating on your existing transformer's label before ordering to confirm fitment. Have a model or part number question? Our HVAC parts specialists verify fitment before you order — reach out before you buy.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908884681075,"sku":"PAYNE-PA3ZNA060000AA-TRANSFORMER-HT01BD242","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908884713843,"sku":"PAYNE-PA3ZNA060000AA-TRANSFORMER-HT01BD242-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD242_00578917-378e-444b-9ea1-13f76e3d41ad.jpg?v=1780718868","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3zna060000aa-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}