{"product_id":"carrier-fy4anf036000aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 24V for FY4ANF036000AAAA — HT01CN241","description":"\u003ch1\u003eOEM Carrier Transformer 40VA for Model FY4ANF036000AAAA (HT01CN241)\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control circuit transformer for the \u003cstrong\u003eCarrier FY4ANF036000AAAA\u003c\/strong\u003e fan coil unit. The transformer steps down line voltage (120V) to the 24V AC signal that powers your thermostat, contactor coil, and all low-voltage control circuits. When this component fails, the entire control system goes dark — no thermostat response, no contactor engagement, and no heating or cooling operation. If your system appears completely dead despite confirmed power at the unit, the transformer is one of the first components to test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number HT01CN241 | 40VA rated | 120V primary → 24V secondary output | Class 2 control circuit transformer | Factory-matched for Carrier FY4ANF036000AAAA fan coil units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01CN241 transformer is wound and rated to Carrier's exact VA specification. Undersized or off-brand transformers can brown out under load from multiple control accessories, causing intermittent lockouts and premature failure of downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or spade connectors. Photograph all wiring before disconnecting. Verify primary and secondary voltages 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 against defects. 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 for the Carrier \u003cstrong\u003eFY4ANF036000AAAA\u003c\/strong\u003e fan coil unit. Confirm your existing transformer's VA rating and voltage specifications on the unit's data plate or wiring diagram before ordering. Our parts specialists are available to verify fitment — order with confidence and get back to comfort fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909466935667,"sku":"CARRIE-FY4ANF036000AAAA-TRANSFORMER-HT01CN241","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909466968435,"sku":"CARRIE-FY4ANF036000AAAA-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_3efa744c-b97a-4aef-900a-9efc753d2c38.jpg?v=1782942583","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fy4anf036000aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}