{"product_id":"carrier-py1ppb036090aaaa-transformer-h30291","title":"OEM Carrier Transformer 40VA 120V\/24V for PY1PPB036090AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model PY1PPB036090AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1PPB036090AAAA\u003c\/strong\u003e packaged unit. The control transformer steps down line voltage (120V) to the 24V AC signal used by your thermostat, control board, and low-voltage safety circuits. When it fails, the entire control circuit goes dark — you'll see a blank thermostat display, no response to any thermostat call, or tripped low-voltage fuses that keep blowing without explanation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary: 120V AC | Secondary: 24V AC | 40VA capacity | Terminal or wire-lead connection | Factory-matched output tolerance for reliable low-voltage operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier deliver the precise VA rating and insulation class your unit was engineered for. Off-brand replacements often run undervoltage under load, causing nuisance lockouts, board resets, and premature contactor wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always disconnect line-voltage power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter (to verify 24V output after install). Label or photograph all low-voltage wiring before removal.\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 3PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for Carrier model \u003cstrong\u003ePY1PPB036090AAAA\u003c\/strong\u003e. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit's data plate or wiring diagram before ordering. Our fitment team is available to confirm compatibility before you buy — orders placed today ship same business day.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640800596339,"sku":"CARRIE-PY1PPB036090AAAA-TRANSFORMER-HT01BD209","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640800629107,"sku":"CARRIE-PY1PPB036090AAAA-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_844754f8-a480-4c28-9225-ef66481ad9b0.jpg?v=1775041352","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1ppb036090aaaa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}