{"product_id":"carrier-fx4dnf061015abaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 120\/24V for FX4DNF061015ABAA — HT01CN241","description":"\u003ch1\u003eOEM Carrier Transformer 40VA 120V\/24V for Model FX4DNF061015ABAA (HT01CN241)\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier FX4DNF061015ABAA\u003c\/strong\u003e fan coil air handler. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage safety and sequencing circuits. 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 no low-voltage components will function. A blown transformer is often caused by a wiring short downstream; always inspect the control wiring before replacing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 120V AC | Secondary: 24V AC | OEM part number HT01CN241 | Factory-matched output for Carrier low-voltage control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier transformer built to exact VA and voltage tolerances. Generic transformers frequently run underrated, causing overheating, premature failure, and potential damage to connected control boards and thermostats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker before beginning any work. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter for verifying 24V output after installation. Label or photograph all low-voltage wiring connections before disconnecting the old transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. Orders placed by 3PM 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\u003eFX4DNF061015ABAA\u003c\/strong\u003e fan coil air handler. Verify the OEM part number HT01CN241 against your unit's data plate or existing transformer label before ordering. If you have questions about fitment, our HVAC parts specialists confirm compatibility before your order ships — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909471687027,"sku":"CARRIE-FX4DNF061015ABAA-TRANSFORMER-HT01CN241","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909471719795,"sku":"CARRIE-FX4DNF061015ABAA-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_0fc9dac2-28d5-401b-a381-5869db722624.jpg?v=1782938668","url":"https:\/\/nationalhvacparts.com\/products\/carrier-fx4dnf061015abaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}