{"product_id":"payne-pa4zna060000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120V\/24V for PA4ZNA060000AA","description":"\u003ch1\u003eOEM Payne 40VA Control Transformer for Model PA4ZNA060000AA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer is the factory-specified step-down transformer for the \u003cstrong\u003ePayne PA4ZNA060000AA\u003c\/strong\u003e air conditioner. It converts 120V line voltage to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When this transformer fails, the entire control system goes dark — no thermostat response, no contactor pull-in, and no heating or cooling regardless of settings. It is one of the first components to test when a system is completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | OEM part number HT01BD209 | Factory-matched output voltage and VA capacity for reliable low-voltage control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory tolerances, ensuring stable 24V output under full load. Generic transformers often under-deliver VA capacity, causing nuisance lockouts, chattering contactors, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label or photograph all wiring connections before removing the old transformer. Verify 24V output at secondary terminals after installation before restoring system 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\u003ePA4ZNA060000AA\u003c\/strong\u003e (5-ton) split-system air conditioner. Verify transformer VA rating and primary\/secondary voltages on your unit's data plate before ordering. Our parts team is available to confirm fitment — order with confidence and get back to comfort fast.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908350169459,"sku":"PAYNE-PA4ZNA060000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908350202227,"sku":"PAYNE-PA4ZNA060000AA-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_cc40fcf9-4b2a-45a0-a28e-caf9818fc08a.jpg?v=1780719039","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa4zna060000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}