{"product_id":"carrier-pf1mnc024008aaaa-transformer-h3hwwy","title":"OEM Carrier Transformer 208\/230V–24V 40VA for PF1MNC024008AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 208\/230V to 24V 40VA — HT01CN241 for Model PF1MNC024008AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier replacement transformer (part number \u003cstrong\u003eHT01CN241\u003c\/strong\u003e) for the \u003cstrong\u003ePF1MNC024008AAAA\u003c\/strong\u003e fan coil unit. The control transformer is the heartbeat of your HVAC system's low-voltage circuit — it steps down line voltage (208\/230V) to the 24V signal used by your thermostat, contactor coils, and control board. When the transformer fails, the entire control circuit goes dead: your thermostat goes blank, the system won't respond to calls for heating or cooling, and no components energize. A failed transformer is often misdiagnosed as a bad thermostat or control board — always check transformer output voltage first.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/230V Primary | 24V Secondary | 40VA Rating | Direct OEM replacement for Carrier HT01CN241 | Factory-matched windings and insulation class\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances specified by Carrier engineering. Undersized or off-spec generic units can overheat, blow fuses repeatedly, or fail to sustain voltage under full control-circuit load — damaging downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after install), wire nuts or spade connectors. Photograph existing wiring before disconnecting. Primary and secondary leads must be correctly identified.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the factory-specified transformer for Carrier model \u003cstrong\u003ePF1MNC024008AAAA\u003c\/strong\u003e fan coil units. Verify primary voltage supply (208V or 230V) matches your installation before ordering. Our parts team is available to confirm fitment — reach out before you order if you have any questions. \u003cstrong\u003eOrder now and ship today!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643340149107,"sku":"CARRIE-PF1MNC024008AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643340181875,"sku":"CARRIE-PF1MNC024008AAAA-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_806f721a-5db8-4435-9c8d-75ce5ffdff45.jpg?v=1775041167","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnc024008aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}