{"product_id":"carrier-fy5bnf036015aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 120V-24V for FY5BNF036015AAAA","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V to 24V for Model FY5BNF036015AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier FY5BNF036015AAAA\u003c\/strong\u003e fan coil unit. The transformer steps down line voltage from 120V to the 24V AC signal that powers your entire control circuit — including the thermostat, contactor coil, and control board. When this component fails, the system goes completely silent: the thermostat shows no response, relays won't energize, and no heating or cooling function is possible. A failed transformer is often indicated by a blown fuse on the control board or a burning smell near the air handler cabinet.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Input 120V AC | Output 24V AC | 40VA rated | OEM part number HT01CN241 | Factory-matched impedance and thermal protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the Carrier control board. Undersized or off-tolerance generic units can overheat, blow fuses repeatedly, or damage downstream control components over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect and breaker before beginning. Tools needed: flat-head and Phillips screwdrivers, wire nuts or spade terminals, multimeter to verify 24V output after installation. 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-stock units ship same business day when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eFY5BNF036015AAAA\u003c\/strong\u003e fan coil unit. Always verify your existing transformer's input\/output voltage and VA rating on the data plate before ordering to ensure a proper match. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909459956083,"sku":"CARRIE-FY5BNF036015AAAA-TRANSFORMER-HT01CN241","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909459988851,"sku":"CARRIE-FY5BNF036015AAAA-TRANSFORMER-HT01CN241-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-HT01CN241_734a1540-8606-4e14-b011-28ff5f781f67.jpg?v=1782939762","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fy5bnf036015aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}