{"product_id":"carrier-fiop100301ga-transformer-h30291","title":"OEM Carrier Transformer 40VA 120V\/24V for FIOP100301GA — HT01BD209","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 120V\/24V for Model FIOP100301GA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FIOP100301GA\u003c\/strong\u003e. The transformer steps down line voltage from 120V to 24V AC to power the low-voltage control circuit — including the thermostat, contactor coil, and control board logic. When this component fails, the entire control circuit loses power: the thermostat goes blank, no calls for heating or cooling are processed, and the system is completely unresponsive. It is often the first component to inspect when nothing works but the breaker is confirmed on.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary voltage: 120V AC | Secondary voltage: 24V AC | Factory-matched construction to Carrier FIOP100301GA specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and insulated to Carrier's exact factory standards. Generic transformers may carry incorrect VA ratings or use thinner wire gauges, leading to overheating, nuisance tripping of the secondary fuse, and premature control board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before servicing. Tools needed: flathead and Phillips screwdrivers, wire nuts or spade terminals, multimeter to verify 24V output after installation. Label or photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our in-stock warehouse inventory.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eFIOP100301GA\u003c\/strong\u003e unit. Always verify the primary voltage, secondary voltage, and VA rating on your existing transformer's label before ordering to ensure a correct fit. Our parts specialists are available to confirm compatibility before you purchase — order with confidence and get back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909510025587,"sku":"CARRIE-FIOP100301GA-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909510058355,"sku":"CARRIE-FIOP100301GA-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_bbbe7868-aa1f-4d0b-a931-de3689875e41.jpg?v=1782941030","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fiop100301ga-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}