{"product_id":"carrier-pf4mna049l00abaa-transformer-h3hwwy","title":"OEM Carrier Transformer 40VA 208\/230V–24V for PF4MNA049L00ABAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V–24V for Model PF4MNA049L00ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01CN241) is the factory-specified 40VA step-down transformer for the \u003cstrong\u003eCarrier PF4MNA049L00ABAA\u003c\/strong\u003e fan coil and air handler series. Its job is critical: it steps line voltage down from 208\/230V to the 24V AC that powers your thermostat, control board, zone valves, and every low-voltage relay in the system. When this transformer fails, the entire control circuit goes dead — the thermostat goes blank, the system won't respond to calls for heating or cooling, and no fault codes will appear because there's no power to generate them.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V primary | 24V secondary | 40VA rated | Class 2 control transformer | Direct OEM fit for Carrier PF4MNA049L00ABAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part built to exact ICP\/Carrier Corporation specifications. Generic transformers often deviate in VA rating or insulation class, risking nuisance tripping, premature failure, or damage to downstream control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect before beginning. Locate the transformer in the air handler cabinet, note wire colors\/terminals, disconnect leads, unbolt the mounting bracket, and reverse the steps with the new unit. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter (verify 24V output before buttoning up).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePF4MNA049L00ABAA\u003c\/strong\u003e fan coil\/air handler. Verify your unit's data plate shows a 208\/230V primary control transformer requirement before ordering. Cross-references with ICP, Heil, Tempstar, and Comfortmaker systems using the same HT01CN241 specification. Have questions about fitment? Our HVAC parts specialists confirm compatibility before your order ships — reach out today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643282772339,"sku":"CARRIE-PF4MNA049L00ABAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643282805107,"sku":"CARRIE-PF4MNA049L00ABAA-TRANSFORMER-HT01CN241-GEN","price":95.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01CN241_e696a3fb-419d-45b6-a55d-8d0bfd7b87ed.jpg?v=1775041590","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf4mna049l00abaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}