{"product_id":"payne-pa4gnxa24000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120V-24V for PA4GNXA24000AA","description":"\u003ch1\u003eOEM Payne Control Transformer 40VA for Model PA4GNXA24000AA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003ePayne PA4GNXA24000AA\u003c\/strong\u003e air conditioner. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, contactor coil, and control board. When it fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to calls for cooling, and nothing runs. It is one of the first components to check when you have zero system response with confirmed line power at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | OEM Part# HT01BD209 | Factory-matched output tolerance for stable control circuit operation\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 or off-tolerance generic transformers can sag under load, causing intermittent lockouts, nuisance tripped fuses, and premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting, and verify fuse integrity on the secondary circuit before condemning the transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship the same business day from our climate-controlled 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\u003ePA4GNXA24000AA\u003c\/strong\u003e split-system air conditioner. Confirm your existing transformer's VA rating and primary\/secondary voltages on the unit data plate or existing transformer label before ordering. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before your order ships.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908862562675,"sku":"PAYNE-PA4GNXA24000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908862595443,"sku":"PAYNE-PA4GNXA24000AA-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_064a6643-6f6a-4bc3-bedb-cdf0eb156ef0.jpg?v=1780718889","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa4gnxa24000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}