{"product_id":"carrier-fx4cnb060000aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 120V\/24V for FX4CNB060000AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01CN241 for Model FX4CNB060000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier FX4CNB060000AAAA\u003c\/strong\u003e fan coil air handler. The transformer steps down 120V line voltage to the 24V AC signal that powers the entire control circuit — including the thermostat, relay coils, and control board. When this component fails, the thermostat goes completely dark, the system makes no response to any call for heating or cooling, and no error codes are generated because the board itself loses power.\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 primary and secondary winding tolerances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to Carrier's exact VA rating, preventing brownout conditions that can damage control boards. Generic units are commonly underrated and may allow voltage sag under full control-circuit load, shortening board life.\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, needle-nose pliers, multimeter (verify 0V before touching wiring). Note wire colors and terminal positions before disconnecting the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eFX4CNB060000AAAA\u003c\/strong\u003e 5-ton fan coil air handler. Confirm the 120V primary \/ 24V secondary \/ 40VA rating on your unit's data plate before ordering. Not sure it's the right part? Our HVAC parts specialists verify fitment before you order — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909486367091,"sku":"CARRIE-FX4CNB060000AAAA-TRANSFORMER-HT01CN241","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909486399859,"sku":"CARRIE-FX4CNB060000AAAA-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_67d3af28-317f-435d-a01c-b82128431e45.jpg?v=1782941173","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fx4cnb060000aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}