{"product_id":"carrier-py3ppa060115nb-transformer-h30291","title":"OEM Carrier Transformer 208\/240V–24V 40VA for PY3PPA060115NB","description":"\u003ch1\u003eOEM Carrier Control Transformer 208\/240V to 24V 40VA — HT01BD209 for Model PY3PPA060115NB\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD209) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PPA060115NB\u003c\/strong\u003e packaged unit. The transformer steps down the 208\/240V line voltage to the 24V DC signal that powers your thermostat, control board, and all low-voltage components. When it fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for heating or cooling, and you may blow a 3A fuse repeatedly. This is one of the first components to check during a no-response, no-power diagnostic.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/240V primary input | 24V secondary output | 40VA power rating | 50\/60 Hz | Direct OEM replacement — factory-matched to PY3PPA060115NB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact Carrier VA and voltage tolerances, protecting your control board from under- or over-voltage damage. Generic units frequently run outside tolerance, risking downstream component failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph or label all low-voltage wiring connections before disconnecting. Verify 24V output with a multimeter after installation before restoring full power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Also replaces superseded part number HT01CN232. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePY3PPA060115NB\u003c\/strong\u003e packaged units. Cross-references: HT01CN232, HT01CN233. Verify your unit's data plate shows a 208\/240V primary control circuit before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — call or chat today and we'll ship it out the same day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640344367475,"sku":"CARRIE-PY3PPA060115NB-TRANSFORMER-HT01BD209","price":55.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640344400243,"sku":"CARRIE-PY3PPA060115NB-TRANSFORMER-HT01BD209-GEN","price":48.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_fb08afad-a2a6-42cc-b53a-8f49909074ff.jpg?v=1775041208","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3ppa060115nb-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}