{"product_id":"carrier-ff1dna024011aaaa-transformer-h3hww2","title":"OEM Carrier Transformer 40VA 120V-24V for FF1DNA024011AAAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model FF1DNA024011AAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement transformer (part number \u003cstrong\u003eHT01CN236\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FF1DNA024011AAAA\u003c\/strong\u003e air handler. The transformer steps down 120V line voltage to the 24V signal voltage required by your thermostat, control board, and all low-voltage control wiring. When this component fails, the entire control circuit goes dead — the thermostat display may go blank, the system will not respond to any calls for heating or cooling, and nothing will operate despite the unit receiving full power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | OEM part number HT01CN236 | Factory-matched to Carrier FF1DNA024011AAAA air handler control circuit requirements\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine OEM Carrier transformer manufactured to exact factory specifications. Generic transformers may carry insufficient VA ratings, causing premature burnout under normal load from multiple low-voltage accessories such as humidifiers, zone controllers, and UV lights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always disconnect power before servicing. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter (to confirm 24V output after install). Label all low-voltage wires before disconnecting. Primary and secondary terminals are typically labeled; verify polarity matches original unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our stocked warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eFF1DNA024011AAAA\u003c\/strong\u003e air handler. Verify your existing transformer's VA rating and primary\/secondary voltage from the data plate or original part label before ordering. If your low-voltage circuit is consistently blowing fuses or burning transformers, inspect for wiring shorts before replacement. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909515891059,"sku":"CARRIE-FF1DNA024011AAAA-TRANSFORMER-HT01CN236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909515923827,"sku":"CARRIE-FF1DNA024011AAAA-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_ff318edc-de21-4bcb-a41e-5103fe277c77.jpg?v=1782939594","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ff1dna024011aaaa-transformer-h3hww2","provider":"National HVAC Parts","version":"1.0","type":"link"}