{"product_id":"payne-pa3znb060000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120V\/24V for PA3ZNB060000AA","description":"\u003ch1\u003eOEM Payne 40VA Control Transformer for Model PA3ZNB060000AA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part# \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003ePayne PA3ZNB060000AA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, contactor coil, gas valve, and control board. When this component fails, the entire control circuit goes dead — your thermostat goes blank, the system refuses to respond to any call for heating or cooling, and no fault codes are generated because the board itself has no power. It is often the first component to check when nothing works at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120VAC | Secondary: 24VAC | OEM part number HT01BD209 | Factory-matched to Payne PA3ZNB060000AA control circuit requirements\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. Undersized generic transformers can brown out under full load — especially when the contactor coil, gas valve, and board all draw simultaneously — leading to nuisance lockouts and premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label all 24V wiring before removal. Verify 120V primary and 24V secondary output with a meter after installation.\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 Payne model \u003cstrong\u003ePA3ZNB060000AA\u003c\/strong\u003e. Confirm your existing transformer's VA rating and primary\/secondary voltages on the data plate before ordering. Our parts specialists are available to verify fitment — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908869837171,"sku":"PAYNE-PA3ZNB060000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908869869939,"sku":"PAYNE-PA3ZNB060000AA-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_b07f963e-b4ed-43ff-badd-d5dffbf4a3b9.jpg?v=1780719006","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3znb060000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}