{"product_id":"carrier-pf1mnc036000aaaa-transformer-h3hwwy","title":"OEM Carrier Control Transformer 40VA 208\/230V — PF1MNC036000AAAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/230V–24V for Model PF1MNC036000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part #HT01CN241) is the factory-specified replacement for the \u003cstrong\u003eCarrier PF1MNC036000AAAA\u003c\/strong\u003e fan coil and air handler systems. The transformer steps line voltage (208\/230V primary) down to 24V AC on the secondary side, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this transformer fails, the result is typically a completely dead control system: the thermostat goes blank, the unit refuses to respond to any calls for heating or cooling, and no 24V is measurable at the secondary terminals. A failed transformer is often caused by a shorted control wire or failed component overloading the secondary circuit — always inspect the 24V circuit for faults before installing the replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 208\/230V primary input | 24V AC secondary output | Direct OEM drop-in replacement for part #HT01CN241\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part, engineered to exact specifications for the PF1MNC036000AAAA platform. Generic transformers often use undersized cores and lower-grade insulation, leading to overheating and premature failure under sustained HVAC load cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (verify 0V before touching wiring), wire stripper. Photograph all wire connections before removal. Primary leads connect to line voltage — follow all applicable electrical codes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In stock — ships same business day from our warehouse when ordered by 5 PM.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Confirmed fit for Carrier model \u003cstrong\u003ePF1MNC036000AAAA\u003c\/strong\u003e. Always verify the existing transformer's VA rating, primary voltage, and secondary voltage on your unit's data plate before ordering to ensure a proper match. Have a question about fitment? Our HVAC parts specialists verify compatibility before you order — reach out today and get the right part the first time.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643337560435,"sku":"CARRIE-PF1MNC036000AAAA-TRANSFORMER-HT01CN241","price":108.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643337593203,"sku":"CARRIE-PF1MNC036000AAAA-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_a450b839-dbf5-4b74-ab7f-4a38c45e8325.jpg?v=1775025456","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pf1mnc036000aaaa-transformer-h3hwwy","provider":"National HVAC Parts","version":"1.0","type":"link"}