{"product_id":"carrier-ff1dna018000abaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V\/24V for FF1DNA018000ABAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model FF1DNA018000ABAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FF1DNA018000ABAA\u003c\/strong\u003e air handler. The transformer steps down 120V line voltage to the 24V used by your thermostat, control board, and all low-voltage control circuits. When this component fails, the entire control circuit loses power — symptoms include a completely unresponsive thermostat, a blank display, and a system that won't heat, cool, or run the fan under any mode.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120VAC | Output 24VAC | 40VA rated | OEM part number HT01CN236 | Factory-matched for Carrier FF1DNA018000ABAA air handlers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier-specified transformer, wound to exact VA and voltage tolerances. Generic transformers may run under-rated VA, causing premature burnout when control boards draw peak current during start cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Confirm 24VAC output with your multimeter after installation before restoring low-voltage wiring connections.\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 as a direct OEM replacement for the \u003cstrong\u003eCarrier FF1DNA018000ABAA\u003c\/strong\u003e air handler. Verify your existing transformer's VA rating and input\/output voltages on the data plate or old component label before ordering. Our team is available to confirm fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909516579187,"sku":"CARRIE-FF1DNA018000ABAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909516611955,"sku":"CARRIE-FF1DNA018000ABAA-TRANSFORMER-HT01CN236-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-HT01CN236_264582ee-f3e0-4147-ac46-e5375550dce3.jpg?v=1782940997","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ff1dna018000abaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}