{"product_id":"payne-pa4gexa60000aa-transformer-h2uxan","title":"OEM Payne Transformer 40VA 120V\/24V for PA4GEXA60000AA","description":"\u003ch1\u003eOEM Payne Transformer 40VA 120V\/24V for Model PA4GEXA60000AA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part# \u003cstrong\u003eHT01BC701\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003ePayne PA4GEXA60000AA\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to 24V AC, powering the control board, thermostat circuit, and all low-voltage components. When this part fails, the entire control circuit goes dead — your thermostat will show no response, the system won't call for heating or cooling, and you may find a blown fuse on the control board from a secondary winding fault.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01BC701 | Factory-matched for Payne PA4GEXA60000AA\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 control board. Undersized or off-tolerance generic transformers can overheat, blow secondary fuses repeatedly, or cause erratic low-voltage behavior across contactors and valves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before servicing. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade connectors, multimeter to verify 24V output after installation. Always label wiring before disconnecting the old transformer.\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 specifically for the Payne \u003cstrong\u003ePA4GEXA60000AA\u003c\/strong\u003e packaged unit. Verify transformer VA rating and primary\/secondary voltages on your unit's data plate before ordering. If your system is blowing the 3A fuse on the control board repeatedly, inspect low-voltage wiring for shorts before replacing the transformer. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you order — reach out before checkout.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908862660979,"sku":"PAYNE-PA4GEXA60000AA-TRANSFORMER-HT01BC701","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908862693747,"sku":"PAYNE-PA4GEXA60000AA-TRANSFORMER-HT01BC701-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC701_69086710-d9e6-4c8e-86d0-a8800684d47d.jpg?v=1780719018","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa4gexa60000aa-transformer-h2uxan","provider":"National HVAC Parts","version":"1.0","type":"link"}