{"product_id":"payne-pa2ppb036000aa-transformer-h30291","title":"OEM Payne Transformer 40VA 120V-24V for PA2PPB036000AA","description":"\u003ch1\u003eOEM Payne Control Transformer 40VA 120V–24V for Model PA2PPB036000AA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-replacement control transformer (part# \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003ePayne PA2PPB036000AA\u003c\/strong\u003e split-system heat pump. The transformer steps down line voltage (120V) to the 24V signal voltage required by your thermostat, control board, contactor coil, and all low-voltage control circuits. When this component fails, the entire control system goes dark — the thermostat loses communication, the contactor won't pull in, and the system appears completely dead even with power at the disconnect. A failed transformer is one of the most commonly misdiagnosed \"dead system\" calls in the field.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | OEM part number HT01BD209 | Factory-matched impedance and thermal protection for Payne PA2PPB036000AA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and impedance specs for this platform. Undersized or off-spec generic units overheat under full control-circuit load, blowing internal fuses and causing repeat failures within a single season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and verify with a multimeter before touching any wiring. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wires before removal. Torque wire-nut connections firmly to prevent intermittent faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed before cutoff ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Payne \u003cstrong\u003ePA2PPB036000AA\u003c\/strong\u003e heat pump (3-ton, single-stage R-410A). Verify your existing transformer's VA rating and primary\/secondary voltages on the data plate before ordering to ensure a correct fit. Our HVAC parts specialists are available to confirm fitment prior to purchase — just reach out before you order and we'll verify the part for your exact unit.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62908919415155,"sku":"PAYNE-PA2PPB036000AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62908919447923,"sku":"PAYNE-PA2PPB036000AA-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_d2fcd891-18da-4cc8-b8ed-637809d0660d.jpg?v=1780718833","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa2ppb036000aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}