{"product_id":"payne-pa3geaa48000aa-transformer-h2uxan","title":"OEM Payne Transformer 40VA 120V\/24V for PA3GEAA48000AA","description":"\u003ch1\u003eOEM Payne Transformer 40VA 120V\/24V for Model PA3GEAA48000AA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down transformer (part number \u003cstrong\u003eHT01BC701\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003ePayne PA3GEAA48000AA\u003c\/strong\u003e packaged air conditioning unit. The transformer converts 120V line voltage down to 24V AC, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the entire system goes silent: the thermostat shows no response, the contactor won't energize, and nothing turns on despite power being present at the unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input: 120V AC | Output: 24V AC | 40VA rating | OEM part number HT01BC701 | Factory-matched impedance and thermal protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the exact factory-original transformer built to Payne's specifications. Generic transformers may carry a mismatched VA rating or lack the built-in thermal fuse protection, risking repeated control board failures or fire hazard in an overloaded circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdriver, multimeter, wire nuts or terminal connectors. Confirm 24V output with a multimeter after installation before restoring full power. Photograph all wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003ePayne PA3GEAA48000AA\u003c\/strong\u003e 4-ton packaged air conditioning unit. Always verify input\/output voltage and VA rating against your unit's data plate before ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908907815283,"sku":"PAYNE-PA3GEAA48000AA-TRANSFORMER-HT01BC701","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908907848051,"sku":"PAYNE-PA3GEAA48000AA-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_a52354a6-bf2b-47ee-8290-ac33e868b5b1.jpg?v=1780718948","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa3geaa48000aa-transformer-h2uxan","provider":"National HVAC Parts","version":"1.0","type":"link"}