{"product_id":"carrier-fiop100f301ga-transformer-h30291","title":"OEM Carrier Transformer 40VA 120V-24V for FIOP100F301GA — HT01BD209","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD209 for Model FIOP100F301GA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FIOP100F301GA\u003c\/strong\u003e. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, and safety circuit. When this transformer fails, the entire control circuit goes dead — your thermostat goes blank, the system produces no response to heating or cooling calls, and no error codes are displayed because the board itself has no power. It is one of the first components to check when a unit appears completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120VAC | Output 24VAC | 40VA rating | Factory-matched OEM part number HT01BD209 | Designed for Carrier FIOP100F301GA control circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and rated to exact Carrier factory specifications. Generic transformers may carry inconsistent VA ratings that cause nuisance tripping on the secondary fuse or gradual voltage sag under full control-circuit load, leading to intermittent lockouts.\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. Label or photograph all wiring connections before removal. Verify 24V output with a multimeter after installation before closing the panel.\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 Confirmed fit for Carrier model \u003cstrong\u003eFIOP100F301GA\u003c\/strong\u003e. Always verify your existing transformer's input voltage, output voltage, and VA rating against your unit's data plate before ordering to ensure an exact match. Our fitment team is available to confirm compatibility before you purchase — don't guess on control-circuit components.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909508256115,"sku":"CARRIE-FIOP100F301GA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909508288883,"sku":"CARRIE-FIOP100F301GA-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_62516cfe-1b18-425d-a479-032475ab3f71.jpg?v=1782939607","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fiop100f301ga-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}