{"product_id":"payne-pa3znb060000ab-transformer-h30291","title":"OEM Payne Transformer 40VA 120\/24V for PA3ZNB060000AB — HT01BD209","description":"\u003ch1\u003eOEM Payne Control Transformer 40VA 120V\/24V for Model PA3ZNB060000AB\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-replacement control transformer (part# \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003ePayne PA3ZNB060000AB\u003c\/strong\u003e packaged air conditioning unit. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, contactor coil, and every other low-voltage component in the system. When it fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for cooling or heating, and no staging outputs fire. It is often the first component to check when nothing works but the unit still has line power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA output rating | Primary: 120V AC | Secondary: 24V AC | Class 2 transformer | OEM part number HT01BD209 | Factory tolerance-matched windings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage specifications for the Payne PA3ZNB060000AB control board draw. Undersized or off-tolerance generic transformers sag under load, causing intermittent lockouts, nuisance tripped fuses, and shortened board life.\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 servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Label all 24V secondary wires before disconnecting. Confirm fuse or circuit breaker on secondary is intact before condemning the transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. 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 and factory-specified for the Payne \u003cstrong\u003ePA3ZNB060000AB\u003c\/strong\u003e packaged unit. Verify your existing transformer's primary voltage, secondary voltage, and VA rating on the unit data plate or wiring diagram before ordering. If you have any fitment questions, our HVAC parts specialists confirm compatibility before you buy — no guesswork.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908869738867,"sku":"PAYNE-PA3ZNB060000AB-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908869771635,"sku":"PAYNE-PA3ZNB060000AB-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_9cad83c2-7979-48db-96e1-6a5652e97b8a.jpg?v=1780718802","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3znb060000ab-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}