{"product_id":"payne-pa1hea072000aaaa-transformer-h302a1","title":"OEM Payne Transformer 40VA 24V for PA1HEA072000AAAA — HT01BD236","description":"\u003ch1\u003eOEM Payne Control Circuit Transformer 40VA for Model PA1HEA072000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified 24V control circuit transformer for the \u003cstrong\u003ePayne PA1HEA072000AAAA\u003c\/strong\u003e air handler. The transformer steps down line voltage (120V) to the 24V AC signal that powers your thermostat, control board, and all low-voltage switching components. When this part fails, absolutely nothing in the system responds — the thermostat goes blank, the blower won't start, and no error codes will display because the control board itself has no power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary → 24V secondary | Class 2 transformer | Direct OEM replacement for part number HT01BD236\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This factory OEM unit is wound to exact VA and voltage tolerances required by the Payne PA1HEA072000AAAA control board. Generic transformers with loose VA ratings can cause erratic low-voltage behavior, nuisance tripping, or premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts. Verify 24V output at secondary terminals with a multimeter before reconnecting the control board harness.\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 specifically for the Payne PA1HEA072000AAAA air handler. Always verify the 120V primary and 24V secondary voltage ratings and 40VA capacity against your unit's data plate before ordering. If you have questions about fitment, our HVAC parts specialists confirm compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909016244595,"sku":"PAYNE-PA1HEA072000AAAA-TRANSFORMER-HT01BD236","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909016277363,"sku":"PAYNE-PA1HEA072000AAAA-TRANSFORMER-HT01BD236-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD236_a3b8b70e-37d4-41e5-b8a9-de2bd6c1be5b.jpg?v=1780719043","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa1hea072000aaaa-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}