{"product_id":"carrier-py3ppa036060ab-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for PY3PPA036060AB","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V — Model PY3PPA036060AB\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PPA036060AB\u003c\/strong\u003e packaged HVAC unit. The transformer steps down 208\/240V line voltage to the 24V signal required to power the control board, thermostat circuit, and all low-voltage safety controls. When the transformer fails, the entire control circuit goes dark — the thermostat loses communication, the system will not respond to any heating or cooling calls, and no diagnostic codes will appear. A failed transformer is one of the most complete no-operation failures in any HVAC system, and this OEM unit restores full factory performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA power rating | 208\/240V primary input | 24V secondary output | 50\/60 Hz dual-frequency compatible | Factory-matched Carrier OEM unit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances, protecting downstream control boards from voltage fluctuation. Generic units with loose tolerances can under-deliver current under load, causing intermittent board faults and premature failure of expensive downstream components.\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 verify 0V before touching wiring). Photograph all wiring connections before disconnecting the old transformer. Reconnect primary and secondary leads to matching terminals and restore power to verify 24V output.\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 for the Carrier \u003cstrong\u003ePY3PPA036060AB\u003c\/strong\u003e packaged unit. Cross-references include Carrier part number HT01BD209. Always verify input voltage on your unit's data plate before ordering — this transformer is rated for 208\/240V primary only. Need fitment confirmation? Our HVAC parts specialists verify compatibility before every order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640363798899,"sku":"CARRIE-PY3PPA036060AB-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640363831667,"sku":"CARRIE-PY3PPA036060AB-TRANSFORMER-HT01BD209-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BD209_9fe12903-3572-4cd7-a1ce-a1500a9fb6cd.jpg?v=1782942429","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa036060ab-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}