{"product_id":"payne-pa3znb060000ac-transformer-h30291","title":"OEM Payne Transformer 40VA 120V-24V for PA3ZNB060000AC","description":"\u003ch1\u003eOEM Payne Control Transformer 40VA 120V–24V for Model PA3ZNB060000AC\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM replacement transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003ePayne PA3ZNB060000AC\u003c\/strong\u003e packaged air conditioning unit. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, control board, contactor coil, and every other low-voltage component in the system. When this transformer fails, absolutely nothing responds — the thermostat goes blank, the unit won't call for cooling or heating, and no error codes are generated because there is no power to produce them.\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 PA3ZNB060000AC control circuit requirements\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 transformers can nuisance-trip on overload or deliver unstable 24V, causing erratic board behavior and premature component failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V output after installation before restoring full system power. Check for any shorted low-voltage wiring that may have caused the original transformer failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Payne \u003cstrong\u003ePA3ZNB060000AC\u003c\/strong\u003e packaged unit. Verify primary voltage (120V) and VA rating on your unit's data plate before ordering. If your system has 208\/240V primary voltage, do not install this unit — contact our team for the correct transformer. Questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908869542259,"sku":"PAYNE-PA3ZNB060000AC-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908869575027,"sku":"PAYNE-PA3ZNB060000AC-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_56ccc25b-58df-408a-b9cc-baa0712ab65a.jpg?v=1780718882","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3znb060000ac-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}