{"product_id":"carrier-py3pna036060aa-transformer-h30291","title":"OEM Carrier 40VA Transformer 24V Control for PY3PNA036060AA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model PY3PNA036060AA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PNA036060AA\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (120V) to the 24V AC signal used by your thermostat, control board, contactor coils, and all low-voltage safety circuits. When it fails, the entire control circuit goes dark — no thermostat response, no heat or cooling, and no fault codes — because the brain of the system simply has no power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rating | Factory-matched OEM windings and insulation class\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD209 is wound and tested to Carrier's exact VA and voltage specifications. Undersized or off-tolerance generic transformers can overheat, trip internal fuses prematurely, or fail to sustain voltage under full control-circuit load — shortening system 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 beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter to confirm 24V output post-install. Always photograph existing wiring before disconnecting terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePY3PNA036060AA\u003c\/strong\u003e packaged unit. Verify primary voltage and VA rating on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640392438131,"sku":"CARRIE-PY3PNA036060AA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640392470899,"sku":"CARRIE-PY3PNA036060AA-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_91803096-0dd9-4c22-8c6d-ee4d7a6cb32a.jpg?v=1775016493","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna036060aa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}